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Online stlaser

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Re: The Bus
« Reply #100 on: December 20, 2015, 07:38:02 PM »
Metal Supermarkets will sell you that stuff reasonable...
Learn the rules like a pro so that you can break them like an artist -Pablo Picasso-

Offline nmeyer414

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Re: The Bus
« Reply #101 on: December 20, 2015, 07:50:49 PM »
can anybody say for sure if a NBS front diff will fit into LB7? 
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Offline JR

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Re: The Bus
« Reply #102 on: December 20, 2015, 09:01:07 PM »
Ebay has all kinds off sizes and shapes. Some sell by length too.

Pretty sure all the under carriage is the same up to 2010. Then they started using the water formed frames. I would say for sure from 2001-2006, but my lift is for use from 2001 to 2010 so I based it on that.
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Offline KensAuto

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Re: The Bus
« Reply #103 on: December 20, 2015, 09:08:19 PM »
Heck, I've even bought some metal stock off amazon in a pinch.

Offline Flyin6

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Re: The Bus
« Reply #104 on: December 21, 2015, 10:17:51 AM »
can anybody say for sure if a NBS front diff will fit into LB7? 
I'm not sure what years you're talking about with the NBS reference. I can say that starting in 2011, the LML's the carrier housing is different, although housing the same AAM 9.25 gear set.
« Last Edit: December 21, 2015, 10:39:20 PM by Flyin6 »
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Offline EL TATE

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Re: The Bus
« Reply #105 on: December 21, 2015, 01:46:49 PM »
9.25 GM ifs applications excluding H2 hummer:

'88-'10 will interchange. Bushings differ internally 88-02, and 03-10 but that's it. all straight swap.

IF you have to remove the driver's side stub, pull the vent tube/breather assembly and get a looong punch. through that access hole, you should be able to punch the center of the stub shaft from the inside while a buddy slide hammers from the outside, greatly increasing your success rate while reducing the chance of breaking the case half or your toes after kicking the dog in frustration.
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Offline JR

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Re: The Bus
« Reply #106 on: December 21, 2015, 01:56:54 PM »
I'll remember that Tate. I have my extra front to build for the max.
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Offline nmeyer414

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Re: The Bus
« Reply #107 on: December 21, 2015, 03:25:11 PM »
that's what I was looking for don.  I was just trying to give TRN options for when he chooses to tackle this. 
Nate

Push a KIA or Prius into the ditch this winter if the opportunity arises........it'll build character for a suffering millennial!

Offline Bigdave_185

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Re: The Bus
« Reply #108 on: December 21, 2015, 04:16:19 PM »
Solid axle swap that monster and solve the GM problem


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Offline TexasRedNeck

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Re: The Bus
« Reply #109 on: December 21, 2015, 08:37:24 PM »
Meh. I like the softer ride of the IFS. Tate so a diff out of a 2010 will bolt up to my 2001?  Good to know. I'll keep an eye out for a spare. I'd go 4:10 if I had a six speed. But with 35s that may be a bit low for a five speed.


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Offline Bigdave_185

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Re: The Bus
« Reply #110 on: December 21, 2015, 11:09:27 PM »
I thought I had been told or read that all Alison's are six speeds they just need to be reprogrammed or something to that nature?   


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Offline Dawg25385

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Re: The Bus
« Reply #111 on: December 21, 2015, 11:20:24 PM »
You can get the fleece module that lets you manually control it via the steering column shift lever a la the 6 speed, that might be what you're thinkin of.


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Offline Bigdave_185

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Re: The Bus
« Reply #112 on: December 22, 2015, 04:58:55 AM »
I do believe so. 


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Offline JR

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Re: The Bus
« Reply #113 on: December 22, 2015, 12:54:38 PM »
You need a new valve body to make the 5 a 6 speed. Then you have to control it, the PCM wouldn't know you had a 6 speed.

All I see from Fleece is the TAP shift for the topkick and Lockup over ride. Is there something not shown?
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Offline Dawg25385

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Re: The Bus
« Reply #114 on: December 22, 2015, 01:15:53 PM »
You need a new valve body to make the 5 a 6 speed. Then you have to control it, the PCM wouldn't know you had a 6 speed.

All I see from Fleece is the TAP shift for the topkick and Lockup over ride. Is there something not shown?

That's what i was referring to. Didn't know you could do the valve body swap/pcm upgrade on the old ones...

Not sure why you'd want to put the money in for that... maybe for hwy mileage benefit? I lock out 6th gear when towing most of the time anyway.
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Offline JR

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Re: The Bus
« Reply #115 on: December 22, 2015, 02:44:36 PM »
Heck, with 35s and stock gears I lock it out for just regular driving. Tate said the 4.56 will bring it back to stock rpm. Right now at 70mph I see 1900.

That valve body is around 2k. Might be better to just get a 6 speed tranny since they all need upgrading.
« Last Edit: December 22, 2015, 02:58:20 PM by JR »
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Offline Bigdave_185

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Re: The Bus
« Reply #116 on: December 22, 2015, 06:10:12 PM »
$6k trans build would be awesome for this thread, great how-to. 


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Offline TexasRedNeck

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Re: The Bus
« Reply #117 on: December 22, 2015, 08:42:05 PM »
Ha. I already have a 6k tranny I this truck. Will hold 850 at the rear wheels.   In 5th at 70 with 35s what will the RPMs be?


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Offline Flyin6

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Re: The Bus
« Reply #118 on: December 22, 2015, 08:54:31 PM »
Ya know, I saw this happen before.

Started with fixin' a few things, then addin' some more things

Then changin' a few more things...
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Offline rasimmo

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Re: The Bus
« Reply #119 on: December 22, 2015, 08:56:36 PM »
Ha. I already have a 6k tranny I this truck. Will hold 850 at the rear wheels.   In 5th at 70 with 35s what will the RPMs be?


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1780 according to the calculator in the sticky


Offline TexasRedNeck

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The Bus
« Reply #120 on: December 22, 2015, 09:32:14 PM »
Ras sorry for being lazy. Is that 4:10? And assuming 5th is .71?


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« Last Edit: December 22, 2015, 09:34:27 PM by TexasRedNeck »
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Offline JR

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Re: The Bus
« Reply #121 on: December 22, 2015, 09:57:20 PM »
My dmax with 35s, stock 3.73 at 70mph is 1900rpm in 5th. Lugs a little in 6th (high egt-load) but does it fine.
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Offline TexasRedNeck

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Re: The Bus
« Reply #122 on: December 23, 2015, 03:40:25 PM »
So if I get the redneck math right the addition of the 6th gear will just about cover the increase in rpm for the 4:11


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Offline rasimmo

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Re: The Bus
« Reply #123 on: December 23, 2015, 03:53:47 PM »
I was bored so I plugged more numbers in that calculator.
5 th (.71) at 70 with 3.73 = 1780 rpm
6 th (.62) at 70 with 4.10 = 1708 rpm
5 the at 70 with 4.10 = 1956

That is according to that calculator not my redneck math.

Offline TexasRedNeck

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Re: The Bus
« Reply #124 on: December 23, 2015, 03:57:43 PM »
Close enough for gov work. !


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Offline JR

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Re: The Bus
« Reply #125 on: December 23, 2015, 04:02:44 PM »
What about 35 in tires at 75 with 4.56?
« Last Edit: December 23, 2015, 04:04:03 PM by JR »
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Offline EL TATE

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Re: The Bus
« Reply #126 on: December 23, 2015, 04:28:42 PM »
What about 35 in tires at 75 with 4.56?
   3.10   1.81   1.41   1.00   0.71 1-5 gears
http://www.ringpinion.com/Calculators/Calc_RPM.aspx
2331 RPM at 75MPH
Click the Transmission Gear Ratio Chart link.
« Last Edit: December 23, 2015, 04:29:40 PM by EL TATE »
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Offline Bigdave_185

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Re: The Bus
« Reply #127 on: December 23, 2015, 06:45:39 PM »
Just add two chargers and call it a day


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Offline JR

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Re: The Bus
« Reply #128 on: December 23, 2015, 07:12:13 PM »
Hmm, I just ran mine with 4.56 and 4.10, 35 inch tire based on .61 OD of the ally.

4.56 is 2000 rpm at 75mph.

4.10 is 1800 rpm at 75 mph.
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Offline Flyin6

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Re: The Bus
« Reply #129 on: December 23, 2015, 08:59:04 PM »
Well, I do have 35" tires and 4.56 gears with the 6 speed ally. At 75 to 80 it really starts to sing. I think the 4.56 is too much gear for a powered up motor pushing a 35" tire
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Offline JR

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Re: The Bus
« Reply #130 on: December 23, 2015, 11:45:49 PM »
I got the 4.56 on Tates advice. I rarely get past 75 even on road trips.

4.10s don't seem like enough and 4.56 are just a tad high if you keep up those speeds and I have followed how you talk about it.

4.27s would be nice but don't think they are made for the f/r of this thing.

I like 1800-1900 rpm. Load seems OK, egt down about 100 and you know the saying about HP to go so fast. 4 x the HP to go twice as fast.

Maybe 36's for your new tires?
« Last Edit: December 23, 2015, 11:59:24 PM by JR »
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Offline TexasRedNeck

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Re: The Bus
« Reply #131 on: December 24, 2015, 08:54:31 AM »
Well I assume it still has the 3:73 in it but I'll find out. It runs like a scalded dog with 37s on it. 35s should be fun.


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Offline Bigdave_185

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The Bus
« Reply #132 on: December 24, 2015, 10:52:33 AM »
Trn what all is done motor wise to this truck.  You mentioned you have a built trans?

I would trade my truck for a red sled all day long If I could find one


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« Last Edit: December 24, 2015, 12:08:02 PM by Bigdave_185 »

Offline TexasRedNeck

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Re: The Bus
« Reply #133 on: December 24, 2015, 11:59:36 AM »
EFI live with dsp5 from Kory.  Banks big head waste gate upgrade. AD165 and exhaust. May look at a compound later.


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Offline TexasRedNeck

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Re: The Bus
« Reply #134 on: December 24, 2015, 05:04:37 PM »
Just ordered a new Redhead steering box.  I'm determined to do the anti-Norm build. It had a little slack at 137k but I want a new feeling truck when I'm done. I have a new door panel for the driver side and a new power mirror switch. This should be nice enough for a daily driver. 

As much as I love the roar of the LB7 straight pipes out the side in front of the rear wheel I'm probably going to put a new system with a muffler on it.


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Offline BobbyB

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Re: The Bus
« Reply #135 on: December 24, 2015, 05:41:24 PM »
As much as I love the roar of the LB7 straight pipes out the side in front of the rear wheel I'm probably going to put a .....

Hood stack! Do it, with a flapper, polished chrome obviously.  ;D












Please don't...
So, Bobby...being the calculating trained warrior NCO that you are.  Take the appropriate action, Execute!

Offline TexasRedNeck

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Re: The Bus
« Reply #136 on: December 24, 2015, 05:47:23 PM »
Rofl. I could see the wife driving it to the mall with a hood stack.....


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Offline Bigdave_185

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Re: The Bus
« Reply #137 on: December 25, 2015, 12:12:28 AM »

As much as I love the roar of the LB7 straight pipes out the side in front of the rear wheel I'm probably going to put a .....

Hood stack! Do it, with a flapper, polished chrome obviously.  ;D












Please don't...

I say go go go on this.  No joke.  I want to see it





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Offline JR

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Re: The Bus
« Reply #138 on: December 25, 2015, 12:49:07 AM »
Rofl. I could see the wife driving it to the mall with a hood stack.....


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And why not??????
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Offline Bigdave_185

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Re: The Bus
« Reply #139 on: December 25, 2015, 01:20:01 AM »
Tex next time your under the red sled will you take a few photos of your side dump exhaust please.  I am interested in doing that instead of the under my bed dump. 


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Offline TexasRedNeck

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Re: The Bus
« Reply #140 on: December 25, 2015, 08:25:09 AM »
Will do. It was very simple. You can have first dibs on it when it comes off.


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Offline Bigdave_185

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Re: The Bus
« Reply #141 on: December 25, 2015, 08:29:43 AM »
I wonder if cause I have a short bed it would be to close to my rear tire.  1500 degrees is kinda warm for tire rubber I think. 


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Offline Bigdave_185

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Re: The Bus
« Reply #142 on: December 25, 2015, 08:30:11 AM »
Merry Christmas Tex.   Get back to presents with them kids


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Offline BobbyB

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Re: The Bus
« Reply #143 on: December 25, 2015, 10:46:24 AM »
Rofl. I could see the wife driving it to the mall with a hood stack.....

Is she smiling? If yes, is it a real smile or one of those "he's going to regret this decision when I get home" smiles?



I wonder if cause I have a short bed it would be to close to my rear tire.  1500 degrees is kinda warm for tire rubber I think. 

You should be able to shorten the pipe leading to the rear probably past the cab area. I've never done it but I'm going to take a guess and say people shorten them up when they do stacks, so the process should be the same.
So, Bobby...being the calculating trained warrior NCO that you are.  Take the appropriate action, Execute!

Offline Bigdave_185

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Re: The Bus
« Reply #144 on: December 25, 2015, 11:36:05 AM »
Just roll the elbow down n out.


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Offline rasimmo

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Re: The Bus
« Reply #145 on: December 25, 2015, 11:43:48 AM »
I wonder if cause I have a short bed it would be to close to my rear tire.  1500 degrees is kinda warm for tire rubber I think. 


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If it's 1500 back there the tires will be the least of your worries. The melted pistons dripping into the crankcase would be more of a concern at that point. ;D

I'm bored so I had to give somebody a hard time today.

Offline Bigdave_185

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Re: The Bus
« Reply #146 on: December 25, 2015, 01:20:49 PM »
I haven't had a working egt probe  in awhile but I know she runs hot and  have seen the burst of 1600 on freeway pulls


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Offline Flyin6

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Re: The Bus
« Reply #147 on: December 25, 2015, 05:23:24 PM »
Tex next time your under the red sled will you take a few photos of your side dump exhaust please.  I am interested in doing that instead of the under my bed dump. 


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Dave,
Easy
If you're using most of the common kits, just take the tail pipe section(s) and attach one or both of them to the back of the muffler, leaving out the section of straight pipe. I want to say I used the first section of my Diamond 4" "over the hump" part on the back of my muffla' to get my side exit done
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Offline KensAuto

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Re: The Bus
« Reply #148 on: December 25, 2015, 11:17:39 PM »
I haven't had a working egt probe  in awhile but I know she runs hot and  have seen the burst of 1600 on freeway pulls


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That's at the head. Once in/past the turbo, it drops significantly. By the time it leaves the tailpipe, it's probably 500 or so. I've never reached over the bed of the truck, while the wife is towing 16k up a mountain though, to test my estimate. lol

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Re: The Bus
« Reply #149 on: December 26, 2015, 07:29:48 AM »
The biggest problem is keeping the rear wheel clean....

On the bright side, that's when I know its time to wash the truck
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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