VEHICLES, CAMPERS, and BOATS > General Maintenance, How to/DIY projects

Replace batteries in 2008-2014 NBS GM trucks

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Flyin6:
OK, the factory batteries made it a little past six years for me. I purchased the truck in October, it was built in July or August. I replaced the batteries, AC Delco in November of 2017. Call it six years and a month of service.

Here's the candidate, my 2011 2500 Silverado with a LML diesel and 80,000 miles on the clock

Flyin6:
First up will be the right side battery, which appears buried in the bowels of the engine bay. Since it looks to be the most difficult, I'll tackle that first.

Flyin6:
Remove the top fender and cowl support. It has 4ea 13mm (head) bolts

Flyin6:
Next remove the tubular brace on the inside of the battery, two more 13mm bolts, then remove the single plastic battery hold down on the inside of the bay, which is a single 13mm long bolt.

After that, I wiggled a cargo strap beneath the old battery to aid in lifting it

Flyin6:
You will have to lift, then turn the battery 70-90 degrees to be able to clear everything to hoist it up and out. If you have teenage children or a friend, get them to do this step! ;-))

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