I was hoping to go 4:56's to give it a little more pep and take some load off the tranny. I've had 4:10's before and dint feel like it justified the cost. I was hoping the shop is wrong and 4:56's are available for the 16's?
Hey Guys, just found the board, 1st post. I did a search on gears and didn't find what I was looking for. I just picked up my 2016 GMC Sierra Denali 1500 4x4 witht he 5.3 and 8 speed. I went with a 6" BDS lift, 1.5" body lift, 22x10 Fules and 37X13.5 Trail Grappler's. Other than that, I just have the Flowmaster super 40 cat back and Banks Intake. I was driving down the freeway and the tranny just went, no warning at all (I was only going 70 mph). GM did replace it under warranty. The truck has 824 miles on it. I have the 8 speed which I've been told is having some issues. I called the shop today that did the lift to add some 4:56 gears, and they said the max gear I can get for this thing is 4:10's. Does anyone have experience with re-gearing a '16? I'm paranoid now and want to get rear gears in the back. I am having it dyno tuned next week, but really want the 4:56's asap.
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