Lower Rear Control Arm Mount Issues

Lower Rear Control Arm Mount Issues

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Discussion

ultima_ontario

Original Poster:

4 posts

62 months

Monday 25th May 2020
quotequote all
Hope all are well folks!

It sounds like earlier model GTR's with sticky tyres and higher HP motors had problems bending subject

I had mine fail last week - rear, right, bottom, front A-arm mount ripped off (weld didn't fail - the tabs / bracket did) under mild throttle application on right hand turn into straight on track. I fully inspected 6 laps earlier and no off track damage / impacts

Upper shock mount bent as well

Photos attached - 2nd photo is healthy opposite side (left - how it should look)

Bolts were all torqued to spec and I paint marked for visual verification between sessions

Thinking I need to order new mount(s) from Ultima, new brake line etc. What do you recommend?
Just went though the build manual and don't see any original chassis alignment specs or material details - would appreciate chassis thickness, material, alignment specs so my local race shop can prepare to repair