Indexing rear springs.
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From: Winston salem, NC
Car: 1987 1SICIROC.....1999 TransAm
Engine: 385 HSR.....LS1
Transmission: 700R4 with Midwest 3400 2.4str...M6
Axle/Gears: SLP Zexel Posi unit 3.42's...3.73's
Indexing rear springs.
Ok I know where the front springs are suppose to sit to be indexed correct.
Where are the rear springs suppose to be...I did a search and cant really understand how they are suppose to sit in the pockets.
It keeps saying pigtail or pointing towards the back of the pocket. Well what points towards the back of the pocket mean?
You mean where the spring has been cut and the end thats cut, point it towards the rear on the car?
The picture is of the front spring but if it was the rear spring would I put the circles part on the the top and point that towards the rear of the car?
Sorry for the stupid question...
Where are the rear springs suppose to be...I did a search and cant really understand how they are suppose to sit in the pockets.
It keeps saying pigtail or pointing towards the back of the pocket. Well what points towards the back of the pocket mean?
You mean where the spring has been cut and the end thats cut, point it towards the rear on the car?
The picture is of the front spring but if it was the rear spring would I put the circles part on the the top and point that towards the rear of the car?
Sorry for the stupid question...
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Not a stupid question man........
The rears really don't matter since the upper part of the spring sits in the isolator and the lower perch on the rearend is totally flat all the way around. Just make sure it sits correctly in the isolator though. I also recommend using the stock part metal/part rubber isolator, the newer replacement ones from GM (for 4th gens BTW) are WAY too thick. Just put the end of the coil near the small lip in the groove of the isolator and sit it completely in the upper bucket.
HTH....Ed
The rears really don't matter since the upper part of the spring sits in the isolator and the lower perch on the rearend is totally flat all the way around. Just make sure it sits correctly in the isolator though. I also recommend using the stock part metal/part rubber isolator, the newer replacement ones from GM (for 4th gens BTW) are WAY too thick. Just put the end of the coil near the small lip in the groove of the isolator and sit it completely in the upper bucket.
HTH....Ed
I thought you could index them a little when I read the following post,,,,but is it just me or do they seem to contradict themselves. One guy says point the pigtails to the front of the car to lower, and the other says to the rear of the car to lower...
Before I gave Jeremy the Formula, I took the suggestion of a friend with the best riding and handling thirdgen I'd been in, no suprise he cut his springs, but that's not what I did. I removed the spring isolators from the rear and indexed the springs back there. The rear dropped over an inch. Made it sit level at least, without any more harshness to the ride than before.
There's a straight part at the top of the spring. have them pointed toward the front of your car and it will lower the rear. Have them point to the back, and they will raise the rear. Mind you, I'm talking slightly, but they do infact change ride height depending on how the spring is indexed. That's how you adjust left and right ride height and compensate for sagging springs.
Got it, I was trying to figure out what you were getting at in your email... Yea, I think I was the one that showed you that. For those of you that don't know, you can change the rear ride height a little (about 1/4, maybe a little more) by rotating the spring and aligning the pigtails on the top of the springs differently. With them in the back of the pocket the car will sit the lowest, in the front it will sit the highest (the pocket isn't parallel to the lower spring seat.
There's a straight part at the top of the spring. have them pointed toward the front of your car and it will lower the rear. Have them point to the back, and they will raise the rear. Mind you, I'm talking slightly, but they do infact change ride height depending on how the spring is indexed. That's how you adjust left and right ride height and compensate for sagging springs.
Got it, I was trying to figure out what you were getting at in your email... Yea, I think I was the one that showed you that. For those of you that don't know, you can change the rear ride height a little (about 1/4, maybe a little more) by rotating the spring and aligning the pigtails on the top of the springs differently. With them in the back of the pocket the car will sit the lowest, in the front it will sit the highest (the pocket isn't parallel to the lower spring seat.
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From: Winston salem, NC
Car: 1987 1SICIROC.....1999 TransAm
Engine: 385 HSR.....LS1
Transmission: 700R4 with Midwest 3400 2.4str...M6
Axle/Gears: SLP Zexel Posi unit 3.42's...3.73's
See thats what Im talkin about. I read that post too. When they say pigtail, are they talking about the part that I have circled in my picture?
thanks
thanks
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From: Mostly in water off So. Cal
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Factory rear isolater develop a nitch or slot into them where the end of the spring has rested for years- if you remove the spring or change to new springs and keep the same isolator then make sure the end of the spring rests in that nitch. Its on the top side of the spring up in the rear can.
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From: Winston salem, NC
Car: 1987 1SICIROC.....1999 TransAm
Engine: 385 HSR.....LS1
Transmission: 700R4 with Midwest 3400 2.4str...M6
Axle/Gears: SLP Zexel Posi unit 3.42's...3.73's
Originally posted by AGood2.8
Factory rear isolater develop a nitch or slot into them where the end of the spring has rested for years- if you remove the spring or change to new springs and keep the same isolator then make sure the end of the spring rests in that nitch. Its on the top side of the spring up in the rear can.
Factory rear isolater develop a nitch or slot into them where the end of the spring has rested for years- if you remove the spring or change to new springs and keep the same isolator then make sure the end of the spring rests in that nitch. Its on the top side of the spring up in the rear can.
yes I know all that but you can also rotate the isolator in what ever direction you want. Now with all that said and what has been posted in different posts, is the end of the spring like in my picture suppose to be pointed toward the rear of the car?
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
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Axle/Gears: 3.42 Eaton Posi, 10 Bolt
Originally posted by Wishmaster's87IROC
yes I know all that but you can also rotate the isolator in what ever direction you want. Now with all that said and what has been posted in different posts, is the end of the spring like in my picture suppose to be pointed toward the rear of the car?
yes I know all that but you can also rotate the isolator in what ever direction you want. Now with all that said and what has been posted in different posts, is the end of the spring like in my picture suppose to be pointed toward the rear of the car?
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
The rear isolator is molded steel with rubber over the top of it...it already has a nitch/slot in them regardless of age. You see the coil imprint in the front isolators which are all rubber.
I don't think it matters which way the bottom points. I put mine in the rear. They just have to be seated completely flat in the upper bucket.
Ed
I don't think it matters which way the bottom points. I put mine in the rear. They just have to be seated completely flat in the upper bucket.
Ed
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