fourth gen frontend swap?
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From: kentucky
Car: 1990 GTA
Engine: L98
Transmission: manual/t56
fourth gen frontend swap?
I read that the major difference between 3rd and 4th gen front suspension is the steering setup . My question is can the subframes be swapped and if so is there big difference in handling? I read that rack and pinion steering on the 4th gen is better than the stock 3rd gen setup. Any thoughts?
Joined: Dec 1999
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From: Hacienda Heights, CA
Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
Yes. Forget about it. There is much more different than just the rack and pinion steering vs. worm & sector ours has. Compare the two in detail and you'll see. Thirdgen: McPherson strut (no upper A-arm), First, Second & Fourth gen's: Upper and lower A-arm suspension and shocks. Yes you COULD spend a lot of time and money converting your superior cornering front suspension to the more supple riding front suspension, but inferior cornering FourthGen version. But, if you really wanted to, it's a lot cheaper just to sell yours and just by a newer F-Body. But either way, have fun with your car. IMO, it isn't worth it. Lon.
Ionsal=The macpherson strut setup is inferior to a Sla, the roll center way way more controlable, the springs and shocks are allowed to be placed in a better position, the camber is way more controlable, plus you have the added benifit of a much more responsive, tighter, lighter steering system.
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Joined: Oct 2000
Posts: 659
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From: Chesapeake, VA
Car: '86 TransAm WS6
Engine: 305 TPI
Transmission: Custom TH700R4
I will agree that a SLA setup is generally superior to a McPherson strut, but NOT the SLA setup from a 4th Gen. Yeah, rack&pinion steering is nice, but there are other ways.
L.B.C= You mention Camber control, but I was just crawled under a '97 RS and I can't figure out how to adjust the thing without dismantling the suspension. Maybe dropping $600 for some of LG's adjustable A-Arms.
A Third Gen McPherson Strut, while not ideal, is certanly easier to adjust and tune than the Tinker-Toy setup on a 4thGen.
L.B.C= You mention Camber control, but I was just crawled under a '97 RS and I can't figure out how to adjust the thing without dismantling the suspension. Maybe dropping $600 for some of LG's adjustable A-Arms.
A Third Gen McPherson Strut, while not ideal, is certanly easier to adjust and tune than the Tinker-Toy setup on a 4thGen.
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