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Offline KensAuto

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1300 on: July 08, 2019, 09:58:10 AM »
Why you wait so long to correct me knucklehead!!
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Offline Nate

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1301 on: July 08, 2019, 10:41:25 AM »
Why you wait so long to correct me knucklehead!!

HAHAHAHAHAHA...………...ryan just re-iterated what I said a few post earlier
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Offline KensAuto

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1302 on: July 08, 2019, 06:03:58 PM »
But I listen to that knucklehead, not you ! :)
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Offline Nate

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1303 on: July 08, 2019, 07:00:19 PM »
But I listen to that knucklehead, not you ! :)

 :kiss:  :kiss: :kiss: :beercheers:
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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1304 on: July 08, 2019, 07:56:24 PM »
Don,

Couldn't get a email to the boy today he was working on airplanes. I did talk to one of his friends who still works as a field service guy for Allison. For the 5 to 6 speed he suggested getting a donor truck and use its TCM (TCM should be a Gen 4 he said you could use some Gen 3 but it depends on the program in it) and transmission. He also thought that all the Allison have the same bolt pattern for the Duramax, they have a pentagon shaped front section / bell housing and all the others are round. He also said that the wiring is the same between gen 3 and 4 . I hope that helps let me know if I can try and track anything else down for you.

Steve 

Offline JR

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1305 on: July 08, 2019, 09:19:05 PM »
Ive seen kits to convert the 5s to a 6s, but is pricy! Valve body and TCM.
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Offline stlaser

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1306 on: July 15, 2019, 01:17:48 PM »
This thing still broke? Think it needs a caddy 500 conversion.....
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Offline KensAuto

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1307 on: July 15, 2019, 01:21:56 PM »
Why don't you go back to sleep and leave the boss alone,  or else I'll ask Big Nate to fire you..

...or at least a demotion with cut in salary.
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Offline EL TATE

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1308 on: July 15, 2019, 02:33:49 PM »
This thing still broke? Think it needs a caddy 500 conversion.....
That quote looks a little salty Shawn... dog problems?
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Offline Bigdave_185

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1309 on: July 15, 2019, 02:55:03 PM »
I really think $3505 is a fair price


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Offline JR

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1310 on: July 15, 2019, 04:24:19 PM »
$3535
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Offline Bigdave_185

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1311 on: July 15, 2019, 06:32:38 PM »
Come on now,  I thought we were friends.


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Offline stlaser

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1312 on: July 15, 2019, 06:41:50 PM »
This thing still broke? Think it needs a caddy 500 conversion.....
That quote looks a little salty Shawn... dog problems?

Kid problems, if I didn’t have kids a single 3.5 cent 22 LR would fix the dog issue......  :rolleyes:
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Online Flyin6

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1313 on: July 15, 2019, 08:25:33 PM »
This thing still broke? Think it needs a caddy 500 conversion.....
...As far as I know...it is
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Offline TexasRedNeck

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1314 on: July 15, 2019, 09:41:07 PM »
You are all fired...

(so really Don, whats the skinny?)
Kids today don't know how easy they have it. When I was young, I had to walk 9 feet through shag carpet to change the TV channel.

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1315 on: July 16, 2019, 08:02:01 AM »
You are all fired...

(so really Don, whats the skinny?)
As far as I know, this part time automotive electrical engineer/professor guy had gotten into things far and above the capabilities of my friend who owns the garage. He brought in the man with the best of intentions, however, this professor guy is only a part timer and is exceedingly meticulous. That took time along with the fact that one week the engineer had a home emergency and was not here. That and the week Troy closed for vacation has taken its toll. I will find out shortly, but I think we are about done. At least I hope so!
And I think the decision to put a Duramax in it, having done it myself is solid. I'll have the motor/trans zero-timed with fresh rebuild and I will do the install, so I'll know where every single wire goes to. Once done I'll have a lifetime vehicle.
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Offline TexasRedNeck

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1316 on: July 16, 2019, 10:54:07 AM »
Anxiously awaiting the results.


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Offline wyorunner

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1317 on: July 16, 2019, 11:21:01 AM »
What he said ^^^^


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Offline JR

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1318 on: July 16, 2019, 12:22:32 PM »
 :popcorn:
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Offline Bigdave_185

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1319 on: July 16, 2019, 02:04:49 PM »
$3550


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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1320 on: July 16, 2019, 05:05:05 PM »
$3550


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I thought this was Dons thread? You know we only low ball Ken on stuff......
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Offline KensAuto

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1321 on: July 16, 2019, 08:47:33 PM »
I'd go 5,000 before Don molested that clean ride


Just kidding boss, please don't fire me again..Shawn made me say it.
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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1322 on: July 16, 2019, 09:04:47 PM »
I was hoping today would be the day

But you can't make this stuff up

My friend is in the hospital! Has been there for 2 days...

Suffice it to say, if I could have read the future, I would have just muscled through and fixed it myself...Darn!

But the man's health is far more important...I can wait.
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Offline cj7ox

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1323 on: July 17, 2019, 03:54:53 AM »
Sorry to hear about your friend being hospitalized! Could your modifications have been the cause for his ails? J/K! I hope he gets better soon! Hospitals and illness suck!
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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1324 on: July 17, 2019, 11:09:38 AM »
Sorry to hear about your friend being hospitalized! Could your modifications have been the cause for his ails? J/K! I hope he gets better soon! Hospitals and illness suck!
Troy is solid old school Kentucky, God fearing good family man. He works hard and although he may not have much he has earned it all honest! I respect that, and can easily understand and wait out something like not having my car. In the end I will get a well sorted and mission ready burb, as the bible states it, "In the fullness of time"
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Offline cj7ox

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1325 on: July 18, 2019, 03:17:29 AM »
 :likebutton:
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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1326 on: July 20, 2019, 10:05:33 AM »
Update:

The truck is still over at Troy's. That is both good and bad. Good because some really bright people are taking a hard look at how that thing is all wired up, and bad because a good percentage of the useable summer is now gone. Ma boyz head back to school on 8 August and football practice has already begun, 5 days a week. Our district consistiently ranks in the very top of Kentucky academics and sports, so it is taken seriously. Therefore the window for me to take the Pre-Rangers anywhere significant has passed, however a couple of weekenders is still a possibility if the Burb gets finished.

So on the good side. The electric fan system operates exactly as it should if it were stock. It keeps the engine cooled and fan number two switches on with the AC. The leak around the trans/transfer is repaired.

The bad is that because of how a luxury equipped Suburban in 2002 is wired, we do not have control of the climate control motor. That means I am getting a cold source in the HVAC plenum, but I cannot get any of the pumped air to flow across the heat exchanger and enter the distribution system. We are essentially having to invent a system to make that happen. The electrical guy was working with some other experts to include blackbear tuning to come up with a strategy.

I could easily just install a switch to force the motor one way or another, but I want the system to operate like it was factory, so more research is required. At this point we know and have examined the various wires going into the PCM, know their purpose/voltage/switching logic and so forth.

But we are not done...yet

So close...
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Offline Bigdave_185

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1327 on: July 20, 2019, 11:29:03 AM »
You say experts working on ...... how much a hour are they gonna hit the pocketbook with this?  Weeks of expert time sounds like $150 a hour?   




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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1328 on: July 20, 2019, 01:34:07 PM »
You say experts working on ...... how much a hour are they gonna hit the pocketbook with this?  Weeks of expert time sounds like $150 a hour?
   

Dave, this is Kentucky...

You sort of have to forget what you understand about how things work in the highly regulated/high cost world to understand that even though experts are working on this the charge may be small. Some folks work on stuff just because it is interesting or are dual tasking. That is the case here...
« Last Edit: July 20, 2019, 04:13:34 PM by Nate »
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Offline stlaser

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1329 on: July 20, 2019, 01:55:29 PM »
Dave, it’s the tuck they don’t even require running or brake lights on trailers..... 
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Offline KensAuto

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1330 on: July 20, 2019, 02:51:32 PM »
Trying to understand why you lost ventilation.  It doesn't run through the pcm, just the compressor does.  Ventilation runs through the Bcm, which should be immune to the programming performed on the pcm.
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Offline TexasRedNeck

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1331 on: July 20, 2019, 08:33:44 PM »
Yeah. Ken is on to something.


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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1332 on: July 21, 2019, 09:32:06 AM »
Ken makes a good point. But Don keep plugging along this is a great adventure and even for a short weekend the time you get to spend with the Pre rangers is priceless

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1333 on: July 21, 2019, 10:58:29 AM »
Trying to understand why you lost ventilation.  It doesn't run through the pcm, just the compressor does.  Ventilation runs through the Bcm, which should be immune to the programming performed on the pcm.

K-I don't know!

Interesting question for the professor tomorrow or whenever he shows

BTW, the truck is looking great. I was almost surprised to see it the other day!
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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1334 on: July 22, 2019, 10:47:01 AM »
More information.
The BCM does control the climate control motor (The thing that swings the door from cold to hot)

But the BCM gets the OAT, engine temp, and cooling fan info from the PCM.

Apparently this information is not being seen by the BCM. The BCM tested fine, one of the early on checks, apparently. And this issue is acknowledged by some tuners in the industry...the early GMT800 suburban wiring with the auto temp feature (In the Suburban)

So it is going to need some engineering to get everything to work, and that is where we still are

Meanwhile, I am working on a multi-function display screen to be used for various things...
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Offline EL TATE

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1335 on: July 22, 2019, 05:18:20 PM »
Help me out here Ken, and I may be off base but don't they have the little control module with the alum heat sink behind the glove box on these that like to melt down?
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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1336 on: July 22, 2019, 05:29:12 PM »
They do. But I think that is only the fan control not the air mix.
I just don't want to wind up missing a digit or limb.  I can sometimes get in a hurry to get results.
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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1337 on: July 22, 2019, 06:34:37 PM »
Well, its still not done, but Troy took over the job from the professor. He needs the bay for a waiting motor replacement job and wants this thing done. I suspect he will have it done pdq, but with all this time and no motor tune, the summer travel plans are a bust.
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Offline Bigdave_185

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1338 on: July 23, 2019, 12:21:08 AM »
And to think I almost had my yard finished before you got here.  I guess I’ll never know if the mulch beds are deep enough. 


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Offline JR

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1339 on: July 23, 2019, 03:24:20 PM »
Bet it would just sink.
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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1340 on: July 24, 2019, 10:28:28 PM »
...Still not done...
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Offline Dfarm01

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1341 on: July 31, 2019, 09:21:54 PM »
Looks like I missed a bunch of progress. Lol

I'm actually getting ready to dig into my burb a bit. After shopping for newer rigs, I've decided that my money will go farther fixing mine up. My next big project is going to be a rebuilt transmission and transfer case. I'm leaning towards a "heavy duty" 4l80E from monster transmission. And I'll take care of the rebuild on the t case. I actually found a company that makes a slip yoke eliminator for the front output on the 246.  I'm hoping that getting rid of the sloppy slip yoke that's on there will get rid of the vibration that is coming from the front shaft.

Speaking of the front shaft, I noticed that yours doesn't have a cv joint at the top.  Do you have any vibration from it?  Mine has a dual cardan joint at the top.  I figured that was pretty standard for lifting these things.

How much lift do you think you got from the shackle flip ?  I have blocks on the back of mine, which are ok, but a shackle flip might be better?

Sorry to hear that you aren't going on the long trip that you were hoping for.

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1342 on: August 01, 2019, 08:16:07 AM »
Looks like I missed a bunch of progress. Lol

I'm actually getting ready to dig into my burb a bit. After shopping for newer rigs, I've decided that my money will go farther fixing mine up. My next big project is going to be a rebuilt transmission and transfer case. I'm leaning towards a "heavy duty" 4l80E from monster transmission. And I'll take care of the rebuild on the t case. I actually found a company that makes a slip yoke eliminator for the front output on the 246.  I'm hoping that getting rid of the sloppy slip yoke that's on there will get rid of the vibration that is coming from the front shaft.

Speaking of the front shaft, I noticed that yours doesn't have a cv joint at the top.  Do you have any vibration from it?  Mine has a dual cardan joint at the top.  I figured that was pretty standard for lifting these things.

How much lift do you think you got from the shackle flip ?  I have blocks on the back of mine, which are ok, but a shackle flip might be better?

Sorry to hear that you aren't going on the long trip that you were hoping for.
I only drove it a couple times before I realized I had fan problems so really can't say about any added vibration. But since I do not recall anything along those lines, it was probably fine. BDS suspensions do not call for the need of any change to the front driveshaft and the angular change is miminal anyway, so given the choice, I would not have elected to change the driveshaft.

As for the lift from flipping the shackle, I'd say 5"-6".

It seems that you get the length of the shackle in added lift. If you had a 4.5" shackle in the factory configuration and simply flipped it then expect a 4.5" lift over what it was stock. That may not be a hard and fast rule, but it is what I experienced.

Flipping the shackle is much better than lift blocks. For safety reasons and for added flex in the suspension it is a great modification.

And ya, I really want that truck back!

So, Troy tells me he has the issue solved and the AC will flat freeze you out of the thing. He is now tracing all the wiring on the PCM bundles to make sure they are all in the correct orientation. I sure hope this doesn't go on much longer...
« Last Edit: August 01, 2019, 08:18:46 AM by Flyin6 »
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Offline Bigdave_185

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1343 on: August 01, 2019, 08:33:07 AM »
They have had the burb for two months now !


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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1344 on: August 01, 2019, 08:49:40 AM »
They have had the burb for two months now !


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Close to it...

And that took out my summer plans!
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Offline TexasRedNeck

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1345 on: August 01, 2019, 09:19:21 AM »
Good to hear progress is being made. Even if it’s slow. One of the things I noticed on my trip to Teton and Yellowstone is that adventure vans are all the craze. Benz, Ram being the most popular. Some nice kits people had together.


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Offline JR

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1346 on: August 01, 2019, 01:10:38 PM »
Good to hear its almost done, like some road reports!

Then you can plan the Dmax swap once you are not happy with the power. (funny how we get older and need more power)
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Offline Dfarm01

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1347 on: August 01, 2019, 07:13:40 PM »
Looks like I missed a bunch of progress. Lol

I'm actually getting ready to dig into my burb a bit. After shopping for newer rigs, I've decided that my money will go farther fixing mine up. My next big project is going to be a rebuilt transmission and transfer case. I'm leaning towards a "heavy duty" 4l80E from monster transmission. And I'll take care of the rebuild on the t case. I actually found a company that makes a slip yoke eliminator for the front output on the 246.  I'm hoping that getting rid of the sloppy slip yoke that's on there will get rid of the vibration that is coming from the front shaft.

Speaking of the front shaft, I noticed that yours doesn't have a cv joint at the top.  Do you have any vibration from it?  Mine has a dual cardan joint at the top.  I figured that was pretty standard for lifting these things.

How much lift do you think you got from the shackle flip ?  I have blocks on the back of mine, which are ok, but a shackle flip might be better?

Sorry to hear that you aren't going on the long trip that you were hoping for.
I only drove it a couple times before I realized I had fan problems so really can't say about any added vibration. But since I do not recall anything along those lines, it was probably fine. BDS suspensions do not call for the need of any change to the front driveshaft and the angular change is miminal anyway, so given the choice, I would not have elected to change the driveshaft.

As for the lift from flipping the shackle, I'd say 5"-6".

It seems that you get the length of the shackle in added lift. If you had a 4.5" shackle in the factory configuration and simply flipped it then expect a 4.5" lift over what it was stock. That may not be a hard and fast rule, but it is what I experienced.

Flipping the shackle is much better than lift blocks. For safety reasons and for added flex in the suspension it is a great modification.

And ya, I really want that truck back!

So, Troy tells me he has the issue solved and the AC will flat freeze you out of the thing. He is now tracing all the wiring on the PCM bundles to make sure they are all in the correct orientation. I sure hope this doesn't go on much longer...

That's interesting about the front shaft.

Thanks for the info on the shackle flip. I'll definitely look I to that some more.

Glad to hear that it's getting sorted out!

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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1348 on: August 01, 2019, 08:44:19 PM »
I'd go back and look at the photos of the BDS kit going in.

Even though they drop the front diff enough to keep the axles at stock geometry, the driveshaft is long enough due to the length of the vehicle to minimize the angular change.

Troy is hoping to have the Burb tidied up by the weekend. It will be so good to finally start to drive the thing and collect some engine maps to get the final programming in there.
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Re: 2002 Suburban 2500 build thread, Part 3
« Reply #1349 on: August 02, 2019, 04:38:45 PM »
I know cognito recommended a CV driveline on the 4-6" lift I got for my '12 truck, and I found out that if I do a hard 4wd launch, it feels like the transfer case is going to explode. That's with it set at about 3-1/2" of lift... but..the 12s are a different platform.
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