Jump to content
  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

Recommended Posts

I wanted to regear my 2012 silverado but most shops want 2k plus. So I was wondering if I could swap the hole axle and front diff with one's that have the gears I want 

Share this post


Link to post
Share on other sites

Sure can.  From what to what?

Share this post


Link to post
Share on other sites

Yeah, go ahead.

 

But you still have to tune the computer fro the gear ratio change.

Share this post


Link to post
Share on other sites
12 minutes ago, justin ferreira said:

From 3.42 to 3.73 or 4.10

Well, the trick here is to find axles with those gears already in them.  So, if you wanted 3.73 gears, you would look at the old 4-speed SUVs, the 2007-2008 Tahoe, Suburban, Avalanche, Yukon and XL.  Still have to check their RPO sheet as they had more variations then the later models.

 

Now as a plus, you can upgrade your rear axle to the 9.5 semi-floater, RPO AXN, which was found behind RWD trucks with 6.0 and 6.2 motors.  However, most of them will have 3.42 gears.

 

I might do the same thing someday, if I go with a 34" tire or for a little more oompf while towing.  My plan is to change the gears myself but also want to put a 9.5 out back as we also like to drag race and play in the mud with it once in a while.

Share this post


Link to post
Share on other sites

That’s what I was thinking to find a axles with the gears already in them. I have the 4.8 with a 7.5 inch lift and 22x14s with 33s. I didn’t really want to mess with the gears so I thought swapping the whole axle would be easier.

  • Like 1

Share this post


Link to post
Share on other sites

With that engine and tire size you need/want 4.10's at a minimum. I wouldn't even consider 3.73's.

 

Yes, a shop could do the calibration change for you. Or a local person with a tuner, this option may be cheaper.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.




×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.