#1  
Old 09-03-2022, 01:53 PM
oethel's Avatar
oethel oethel is offline
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Join Date: Jan 2015
Location: west ky
Posts: 100
Default Control arms problems

I installed new B body TRZ upper and lower control arms and QA1 coilovers to the front of my 72 Catalina.i street drove a couple hundred miles this year in this configuration with no problems.took to the track and left on the transbrake first run.aborted run due to tires spinning about 20ft out.second run footbraked to 3000rpm to stage and both lower control arms failed shoving both my front tires back.I'm going to have to do my front suspension again.I could go with a heavier built B body control arm from global west and solve the problem.No one makes aftermarket B body spindles.Maybe a combination of parts could work to where i had for example: B body control arms, A body ball joints, spindles and race brakes.I know that A body and B body ball joints and spindles are different and years do matter.As far as I know my suspension is GM B body 71-76.Can i buy A body control arms and install B body ball joints to fit my stock B body spindles.I think the distance between ball joints is different between A and B body.The dirt track guys have B body suspension parts that are commonly used amongst themselves.Not sure if I could use some of those parts.The ultimate goal would be to have aftermarket control arms,spindles,brakes,tie rod ends.Is there a combination of commercially available aftermarket control arms,ball joints,spindles,brakes,tie rod ends using B,A,F,X body parts that would work with my setup. My front wheels are adapted to 4 3/4 bolt space.If you need more info or just want to ask a question,ASK and I will return a comment.looking at all options and just need some help.
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  #2  
Old 09-05-2022, 12:00 PM
Skip Fix's Avatar
Skip Fix Skip Fix is offline
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Default

TRZ are light arms. global West are a little heavier tubular arms.
https://www.globalwest.net/impala-lo...obal-west.html

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