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Custom Rear Frame Brace

10K views 16 replies 11 participants last post by  Motohed  
#1 ·
After reading about some rear frames bending or cracking over time I decided to add a brace. I ended up drilling a hole through the frame just behind the rear drive housing on each side and welded a thick sleeve in it. Then I welded 3/8"-24 threaded tube ends to a 3/4" tube and bolted it in. Pretty happy with how it turned out.

Glad I did this when I did because the trip right after my friend slid the back of my car into a berm pretty hard. No damage. Guess it worked. Thinking about adding another one in front of the drive housing or maybe some gussets behind the suspension tabs.

 
#4 ·
Yes, it bolts in. Maybe you didn't read my post or look at the photo, haha.

I've taken the rear drive out to install a Hess pinion bearing support, Alba coupler and boot. All of which were nice pieces.

 
#6 ·
Glad you like it. I thought about the best way to strengthen the rear frame for a while and this was the best I could come up. Hopefully it inspires others to come up with new things for the yxz.
 
#14 ·
If your a good mechanic and have tools it is not hard. I had to buy a press to push the pinion out of the old bearing and in the new one. You need a good impact to remove the pinion nut as well. I would not hesitate to do it again.
 
#15 ·
Great idea. Where did you get the rear arm gurads?

After reading about some rear frames bending or cracking over time I decided to add a brace. I ended up drilling a hole through the frame just behind the rear drive housing on each side and welded a thick sleeve in it. Then I welded 3/8"-24 threaded tube ends to a 3/4" tube and bolted it in. Pretty happy with how it turned out.

Glad I did this when I did because the trip right after my friend slid the back of my car into a berm pretty hard. No damage. Guess it worked. Thinking about adding another one in front of the drive housing or maybe some gussets behind the suspension tabs.

View attachment 102810
 
#16 ·
Wait, want to make sure I understand how you did this.

You drilled a hole in each part of the frame and welded a sleeve in the frame. Then used a threaded tube in between the frame supports and bolted into that tube, correct? The sleeve is not threaded so the bolt passes through to the threaded tube?