Rear Trailing Arms, Reinforcements to Resist Twisting |
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Rear Trailing Arms, Reinforcements to Resist Twisting |
Heater Guy |
May 6 2016, 10:00 PM
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#1
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Member Group: Members Posts: 74 Joined: 20-October 09 From: Walnut Creek, CA Member No.: 10,960 Region Association: Northern California |
Lamont Welding & Fabrication in Antioch, CA (925) 754-7824 has a fixture to modify trailing arms. It holds the trailing arm in the correct stock alignment.
He mounts the trailing arm in the fixture, cuts it in half and welds in a 1/8" rectangular plate. The 1/8" plate helps to reduce twisting deformation by breaking the twisting length of the arm into two lengths instead of one long length. The charge is $80.00 per trailing arm. I just had my trailing arms reinforced. This reinforcing method is better than plating the arms with heavy sheet metal. |
Heater Guy |
May 9 2016, 04:21 PM
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#2
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Member Group: Members Posts: 74 Joined: 20-October 09 From: Walnut Creek, CA Member No.: 10,960 Region Association: Northern California |
I run 315 - 17 Hoosier slicks on my SCCA
track car. These hot sticky tires will torque stress the trailing arms and cause them to Flex. The thin walls of my trailing arms have stressed to the point of taking a perminent set. Tired of pulling out and putting in shims to correct geometry. I have always believed it was better to reinforce the chassis connetions than plate the trailing arms to the extent that if the trailing arm gets hit, it rips out the chassis connections. Used trailing arms are relatively cheap compared to chassis repair. |
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