Fix your bent D1, RRC, Defender trailing arms.

cdansan

Well-known member
Sep 15, 2008
537
0
Northwestern, Vermont
I can fix your bent trailing arms. $150 plus freight.
Compared to TerraFirma which are 3/16 .188" wall and over 200$
I use your factory trailing arms ends and sleeve with 1/4" wall DOM tubing.
They can be bent or straight trailing arms. I have a tube bender if you would like a specific degree of bend.
After welding the ends on, they are drilled thru and 3 1/2" grade 8 bolts welded in to lock them in.
I have been using the first set I made for 6 years.
Turn around is 2 days. I am in Vermont.
Contact me if there are questions or for shipping directions.

Dan

 

Mongo

Well-known member
Apr 19, 2004
5,731
2
59
Nice...one thing, use a grade 5 bolt instead of grade 8, those are more brittle and can crack or fracture (especially after welding, it effects the heat treat) when you bash shit
 

ezzzzzzz

Well-known member
Apr 22, 2010
604
7
SE Va
I'd forego the bolt all together. Drilling through creates a weak point that will not be strengthened by the external weld. Predrilling the tube and rosebudding those holes once assembled would create a stronger joint.
 

Mongo

Well-known member
Apr 19, 2004
5,731
2
59
My point is based on the changing the "heat treat" on the bolt when welding it...Stock bolts range from grade 3 to grade 5, I don't think I ever seen a grade 8 stock bolt, but I could be wrong. Proper torque with a bolt is the most important thing...
 

cdansan

Well-known member
Sep 15, 2008
537
0
Northwestern, Vermont
I don't know how the welding and subsequent heat sinking while cooling will change the heat treating.
I do know that is how you take the temper out of things to reduce the hardness.
Starting with a softer fastener will result in less change in hardness.
 

Mongo

Well-known member
Apr 19, 2004
5,731
2
59
Correct and grade 5 bolts are not heat teated like a grade 8. I was told by a couple different welders to use a non-hardened bolt in this scenario