GT Performance Mods 2005+ Mustang GT Performance and Technical Information

Lca and uca.....

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Old 2/23/08, 11:29 AM
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Lca and uca.....

which one is better to get adjustable? Or should i get them both adjustable?

i checked bmr site and they have a few of them with poly bushing, rod end or spherical bearing. which combination is best?
Old 2/23/08, 05:07 PM
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Usually its a fixed lca and an adjustable uca... I use the brm billet lca and I love it!
Old 2/23/08, 07:01 PM
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For most people, an adjustable UCA and fixed LCA's would be the way to go. It's a lot easier to adjust (and get it right) one up top than two on the bottom.
Old 2/23/08, 07:39 PM
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I agree, the UCA is the way to go, you can screw the thrust alignment up if your not careful with the adj LCAs
Old 2/24/08, 01:56 AM
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Cool, i think i'll get the uca adj. but what will the lca relocation brackets be used for if i have fixed lca.

Thanks for the useful replies guys(unlike in other forums)
Old 2/24/08, 03:50 PM
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The relocation brackets are used for cars that have been lowered to correct the suspension geometry. The LCA should angle slightly to the rear of the car. Sometimes after you lower your car the angle actually changes to the opposite and the LCA is pitched forward because the rear is sitting higher in the chassis. Oh and to answer your question about the bushings get the poly ones not the spherical rod ends as those are for hard core racing only.
Old 2/24/08, 03:58 PM
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So hypothetically...lets say you have some lowering springs and some LCA's and Relocation brackets sitting in yor garage waiting for spring to come. What order should you put the 3 on? Hypothetically
Old 2/24/08, 04:34 PM
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I would do the UCA first as per the manufacture instructions. then do the RElocation brackets and LCA's at the same time as the LCA's have to be removed anyway to install the relo brackets. At least the rear portion as well as the panard bar.
Old 3/10/08, 10:07 PM
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Just going to add my question in vs making another thread.

Mods currently
Roush rear springs
Che Adj. Lca's
Adj panhard.
Pinion angle set by LCA's. 4wh align in specs.

Whats sitting here waiting for warmer weather.
Eibach Pro kit
Dspec's
Lca Relocation brackets.

Since I will be needing an alignment and already be working in the rear suspension area I am thinking of adding an UCA to the list. Am I ok with a non adj. upper since I can change the pinion angle with my lowers?

Occasional drag strip for fun, road track once or twice a year for fun, and daily driver in the summer. Alum drive shaft planned in the future........


Thanks, Im going nuts reading all the suspension threads in many forums
Old 3/10/08, 10:20 PM
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Originally Posted by Stoenr

Occasional drag strip for fun, road track once or twice a year for fun, and daily driver in the summer. Alum drive shaft planned in the future........


Thanks, Im going nuts reading all the suspension threads in many forums
You'll be FINE with just the adjustable lowers for your situation. Get a good UCA with a poly bushing and fuhgeddaboudit....
Old 3/11/08, 03:43 PM
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i have a question.....

would it be possible to swap the bushings out on the stock LCA's with poly ones, and strengthen the stock pieces at all???

just wondering, i like to weld, and poly bushings arent that expensive.....
Old 3/11/08, 07:17 PM
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Originally Posted by SoundGuyDave
You'll be FINE with just the adjustable lowers for your situation. Get a good UCA with a poly bushing and fuhgeddaboudit....
Thanks, what I wanted to hear.

Not worried about adjusting thrust angle via lowers and pinion, we have a state of the art alignment machine to do that. If the car will clear the rack after lowering, lol.
Old 3/13/08, 02:53 PM
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Originally Posted by n8rfastback
i have a question.....

would it be possible to swap the bushings out on the stock LCA's with poly ones, and strengthen the stock pieces at all???

just wondering, i like to weld, and poly bushings arent that expensive.....
Adding stiffer poly bushings to the stock LCA would be an effort in futility if that is all you did (and if it is possible to remove the stock bushing without destroying the end of teh arm??). The stock arms are flimsy, thin, stamped steel pieces. Unless, that is, you want to remove them and box 'em as well. A lot more work than just replacing them but it could be more stealthy than aftermarket LCAs.
Old 3/13/08, 03:13 PM
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yea i was thinking about poly bushings and boxing the stock arms to strengthen them....
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