mason_smith818

Okay. As far as the tuning goes, would it necessarily have to be a “custom tune” from a tuner. Or would a standard mechanic shop be able to make it work with a standard flash? Also, if it does have to be a custom tune, could I limp it home from the shop until I could get a tune for it?

I figured it would be a lot easier to do it that way. Heck, they might all be the same no matter the gear ratio. As long as the housings are the same, I don’t imagine having any problems as far as fitment would go. But want to be sure before I pull the trigger.

Hey guys. I just bought a 2013 Silverado z71 leveled on 35’s. I noticed it was really sluggish in comparison to my other buddies 07-13 trucks. Well, come to find out, the truck has 3.08 gears. I’m really wanting to make the jump to at least a 3.73, and had a couple questions as this is my first GM truck I have ever owned. 1. Instead of changing the actual ring and pinion, could I buy an entire used 3.73 axle for the rear, and just re-gear the front chunk, in turn saving money? 2. Will any 07-13 1500 rear axle actually work and fit if I did go this route? (I guess what I’m trying to ask is if they’re interchangeable or if something differs between any of them, or was changed over the years these trucks were produced). 3. Is a tune mandatory afterwards for the truck to run out and shift correctly? (I’m not used to trucks with so many electronically controlled parts, lol). I’m not really concerned with the speedometer being if that would be the only issue. Thanks in advance guys.

Very true!

I thought it was odd too... should’ve checked before I bought. But yep, has GU4 and G80. Will the truck still be driveable? Or will it render completely useless?

Hey guys. So I just bought a 2013 Z71. Little did I know, the truck has 3.08 gearing. I already ordered my 35’s and was wondering if you guys think I’d be alright running them? I only tow occasionally, and when I do, it would be a Honda pioneer 500. So what do you guys think? Should I piss off the tire shop and cancel my order, and get 33’s instead? Or do you think I’ll be okay? Anybody that has 35’s and 3.08’s themselves are MORE than welcome to drop some input down below. Thanks!