Jump to content
Ultimate Subaru Message Board
Sign in to follow this  
RustyBrat

to weld or not to weld...

Recommended Posts

i cant decide if i want to weld the rear diff on my 78 subaru brat. it has a 4 inch lift, and i run 27-29 inch tires on it. i primarily use it off-road, but it does see occasional highway driving and around town. if i weld the rear diff, i know it will help a lot off-road, but im afraid that when i drive in on pavement i will break axles or the diff itself. i know some people weld the diff, then remove an axle for street driving... but that sounds like a pain to do all the time. what are your experiences with welded diffs? should i do it?

Share this post


Link to post
Share on other sites

Weld it,Over inflate your rear tires for street driving,drive it fast around turns so there is less force on each axle,finally when turning from a stop turn as wide as you can to again minimize the stress on rear axles.I will say though that actually blowing a rear axle or the diff on the street is rare unless you pull the front axles for RWD shenanigans...

 

However,it is not advised to weld it with a 110 welder,unless you can heat the spiders to a dull red  with a torch to get more penetration.

 

also when your driving on a slow curvy paved road (sub 35 MPH) it can help if you intentionally drop one of the rear tires into the dirt.

Edited by Uberoo

Share this post


Link to post
Share on other sites

i appreciate the input :) so its not that big of a deal on pavement around town? i have access to a 220 mig welder, that should do the trick right? also, im going to be running some deep tread tires, does that make a difference?

Share this post


Link to post
Share on other sites

other than tire noise its not a problem because the rear axle is just dragged through corners without power being sent to it.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×