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

Another Front Spring Q?

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Old Aug 28, 2006 | 12:07 AM
  #1  
formula350sd's Avatar
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From: Lombard Il
Car: 89 Formula
Engine: 383 vortec tpi
Transmission: t56 woot
Another Front Spring Q?

Ok I'm pretty sure I have this worked out but wanted to be sure so here goes

A thirdgen uses a 5.5 inch diameter front spring so any standard circle track spring would work (bassically) but most are too short so you need a weight jack or a spring spacer to take up the extra distance

So could I use something like this

Here

Placed on top of the and a regular 9.5 x 5.5 inch circle track spring?

Also would it be nessacary to tack weld the spacer to the upper spring bucket?

And would a 900 Lb spring rate be a decent choice for this I'm looking for a pretty firm ride and going for a kind of low buck pro touring thing with my car (jack of all trades master of none)

All feedback is appreciated

Thanks
AL
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Old Aug 28, 2006 | 12:30 AM
  #2  
Sonix's Avatar
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
900lb/in spring rate?!?! Are you sure that's what you want? That would be like riding a skateboard... Street driven?

I mean, I use the moog 5664, which is 750ish lb/in, compared to the stock 5660 on my car, 560lb/in, its rock hard. I like it though. I think 900 would be pretty excessive though.

Sorry, I don't have any useful technical help for you, just making sure thats what you want to do.
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Old Aug 28, 2006 | 10:38 AM
  #3  
formula350sd's Avatar
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From: Lombard Il
Car: 89 Formula
Engine: 383 vortec tpi
Transmission: t56 woot
I really dont see it being to stiff...........but the good part about using stock car springs is that there cheap and readily avalible in many different rates should I want to change later down the road

And yes it will be street driven
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Old Aug 31, 2006 | 04:11 PM
  #4  
formula350sd's Avatar
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From: Lombard Il
Car: 89 Formula
Engine: 383 vortec tpi
Transmission: t56 woot
A little help here I'm pretty sure I got it right but I just want to be 100% sure
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Old Sep 1, 2006 | 08:15 AM
  #5  
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
I used the AFCO adjustable spacers and springs on the 1st gen. Great way to go, easy to adjust the height, and a wide selection of spring rates.

To fit the upper pocket the top of the spacer was tapered from 0 to 1/4 ". this allowed the spacer to sit square to the spring. They aren't welded in, the spring pressure holds it in place.

On a 3rd gen the spacer can be placed in the lower pocket. No shock to deal with.

RBob.
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Old Sep 1, 2006 | 12:31 PM
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From: Lombard Il
Car: 89 Formula
Engine: 383 vortec tpi
Transmission: t56 woot
Thanks thats all I needed I just wanted to be sure after all Ill be the fool driving in it LOL
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