Suspension and Chassis Questions about your suspension? Need chassis advice?

Suspension Overhaul

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Old 02-01-2012, 09:57 PM
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Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Suspension Overhaul

Ok so I'm lookin to redo the whole suspension in poly bushings which I hope all come with grease fittings. Which is a good cheap affordable adjustable lca for the rear also want to get a adjustable pan hard bar for when I lower it a inch. For the front suspension what are the sizes of the front sway bar bushings an the sway links so I can order a set from summit. Also do they make a torque arm bushing in poly cause if so I'll need one of those too then please give feed back on anything I missed thanks in advanced
Old 02-02-2012, 07:47 AM
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Re: Suspension Overhaul

Here are the adjustable poly arms we have: http://www.umiperformance.com/catalo...roducts_id=345

For the sway bar size, to be sure, use an adjustable wrench to gauge the bar then measure the wrench (of course you can also put a big wrench on to size it if you have a big tool kit).

Summit carries the full UMI line.

ramey
Old 02-02-2012, 12:03 PM
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Re: Suspension Overhaul

as ramey mentioned, the best way to know what sway bars you have is to measure. previous owners swap parts all the time, especially with the age of these cars.

ES makes poly bushings for the torque arm as well, should be available at places like jegs/summit/etc; there were a couple different revisions of the torque arms used on these cars, so double check the profile end at the mount to make sure you get the right one for your car.
Old 02-02-2012, 10:31 PM
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Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Suspension Overhaul

Yes I measured with a digi caliper an it measured the front in 31mm an the rear was 24mm looks like I got the performance package sway bars wooohooo to install new bushings can I do it with the suspension unloaded or does it have to be loaded to get the links parallel with the frame mounting point to control an a-arm
Old 02-02-2012, 10:45 PM
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Axle/Gears: Limited Slip 3.23's
Re: Suspension Overhaul

Originally Posted by soarestransam
Yes I measured with a digi caliper an it measured the front in 31mm an the rear was 24mm looks like I got the performance package sway bars wooohooo...
Never heard of a 31 mm. The 24 mm rear is usually coupled with a 36 or a 34 front bar.

JamesC
Old 02-02-2012, 11:22 PM
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Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Suspension Overhaul

Sorry that's what I ment to put 36mm how would I get the end links parallel is it alright to use car ramps to get under neath since I saw in the suspension 101 sticky that the suspension has to be loaded inorder to install them right I really don't have access to a ride on lift at the moment lol
Old 02-03-2012, 08:47 AM
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Re: Suspension Overhaul

Just do what I did and build some drive on ramps.

http://www.mustangworld.com/ourpics/...amps/index.htm

I painted the bottom of the ramps with bed liner to make it anti-slide and I also cut the bottom board at an angle so it is easier to drive on. They are heavy SOBs, but have paid for themselves several times over.
Old 02-03-2012, 09:37 AM
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Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Suspension Overhaul

I have car ramps already that are low enough not to scrape up the bottom or the bumper are these ok to use for doing the front an rear sway bar install an links???
Old 02-03-2012, 09:52 AM
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Re: Suspension Overhaul

If you can roll under, yes. Endlink installation is easier when the suspension is fully loaded like on ramps.

Make sure to use e-brake and any other ramp precautions.

ramey
Old 02-03-2012, 08:29 PM
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Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Suspension Overhaul

Ok so I got the front of the car up on ramps an I was able to install the poly bushings with the front sway bar an endlinks on I got the drivers side link parallel with the bar an a Arm the passenger is kinda slanted alittle bit is there a way to get both of them straight or did I mess something up ????
Old 02-03-2012, 08:31 PM
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Re: Suspension Overhaul

Rarely are they perfectly parallel/square with the world. I'd get the car down on the ground and see how it looks.

Remember to not tighten your endlinks too tight. Just enough to take all the play out of them and put a little pressure. They usually have locking nuts.

ramey
Old 02-04-2012, 09:37 PM
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Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Suspension Overhaul

Yea Im still working on the front sway bar the rear sway links an bushing didn't come in the mail today :-( so I'll get the car flat an see if I can get underneath to make adjustments
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