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

To Raise or to Lower

Thread Tools
 
Search this Thread
 
Old Jul 21, 2013 | 01:25 PM
  #1  
jazzdadss's Avatar
Thread Starter
Senior Member
15 Year Member
 
Joined: Dec 2009
Posts: 702
Likes: 4
From: Texas
Car: 1989 IROC LSX
Engine: Swapped LS6 Forged by LME
Transmission: 4L65E
Axle/Gears: 3.73
To Raise or to Lower

Just trying to think of a cost effective way to accomplish this. I need to either Lower the rear of the car .75 with factory springs or raise the rear of the car .50 with the Hotchkis springs.

After my LS swap the nose sat too high so I cut 1/2 a coil from the front springs to bring it back down. Well it kinda brought it down a bit more than I wanted. So I tried to match it with 1" springs for the rear. It kinda dropped it about 1.5" so now the rear is lower than the front. I don't realy want a lowered car but the rear just looks stupid either way and I am not sure how to get in the middle?

Any Ideas??
Reply
Old Jul 21, 2013 | 02:39 PM
  #2  
Alice89's Avatar
Member
iTrader: (6)
 
Joined: Dec 2011
Posts: 497
Likes: 8
From: DFW
Re: To Raise or to Lower

Do you have spring isolators? They make around 1/2 to 3/4 of an inch difference. (meaning taller) People usually remove the isolators to lower there car, however in your case if they are not present I would install a set in the rear and see if it makes your stance better.
Reply
Old Jul 22, 2013 | 02:41 PM
  #3  
hellz_wings's Avatar
Supreme Member
15 Year Member
iTrader: (2)
 
Joined: May 2007
Posts: 2,340
Likes: 2
From: Montreal, Canada
Car: 1986 Chevrolet Camaro IROC-Z28
Engine: TPI 310ci (LB9)
Transmission: Custom Rebuilt 700R4 - 2600 Stall
Axle/Gears: 10 bolt, 3.73 Eaton Limited-Slip
Re: To Raise or to Lower

i second that, if you get 4th gen rear isolators, they are thicker in the rear than the 3rd gen ones so even if your car has em', you could always replace them with the thicker ones and raise the rear slightly.. I don't know by how much but my guess is around 1/4" to 1/2"?
Reply
Old Jul 22, 2013 | 10:03 PM
  #4  
plum92_camaro's Avatar
Supreme Member
20 Year Member
 
Joined: Aug 2004
Posts: 1,051
Likes: 4
From: Iowa
Car: 92 Camaro RS
Engine: LS1
Transmission: T56
Axle/Gears: 10bolt w3.42 Torsen
Re: To Raise or to Lower

http://www.energysuspension.com/prod...-Isolator.html

Not sure if these will work but worth looking into.
Reply
Old Jul 23, 2013 | 05:45 PM
  #5  
jazzdadss's Avatar
Thread Starter
Senior Member
15 Year Member
 
Joined: Dec 2009
Posts: 702
Likes: 4
From: Texas
Car: 1989 IROC LSX
Engine: Swapped LS6 Forged by LME
Transmission: 4L65E
Axle/Gears: 3.73
Re: To Raise or to Lower

Thanks, yes mine have upper isolators but no lowers. The fourth gen ones you speak of are they the uppers? Reason being is that I have never seen any lower isolators on any third gen I have had??? But I think I saw some on the internet? So lowers exist?
Reply
Old Jul 23, 2013 | 05:49 PM
  #6  
Alice89's Avatar
Member
iTrader: (6)
 
Joined: Dec 2011
Posts: 497
Likes: 8
From: DFW
Re: To Raise or to Lower

I'm 99% sure there are no lower isolators. However if you want to try out fourth gen isolators over your third gen ones, you should notice a ride height increase of 1/4 - 1/2 inch.
Reply
Old Jul 23, 2013 | 09:41 PM
  #7  
plum92_camaro's Avatar
Supreme Member
20 Year Member
 
Joined: Aug 2004
Posts: 1,051
Likes: 4
From: Iowa
Car: 92 Camaro RS
Engine: LS1
Transmission: T56
Axle/Gears: 10bolt w3.42 Torsen
Re: To Raise or to Lower

I've never seen or heard of lowers. My understanding is the rubber isolators were only to stop the transfer of road noise to the body.
Reply
Old Jul 24, 2013 | 08:32 AM
  #8  
hellz_wings's Avatar
Supreme Member
15 Year Member
iTrader: (2)
 
Joined: May 2007
Posts: 2,340
Likes: 2
From: Montreal, Canada
Car: 1986 Chevrolet Camaro IROC-Z28
Engine: TPI 310ci (LB9)
Transmission: Custom Rebuilt 700R4 - 2600 Stall
Axle/Gears: 10 bolt, 3.73 Eaton Limited-Slip
Re: To Raise or to Lower

Interesting about the lowers.. Maybe that would make the ride less harsher perhaps? LOL
Reply
Old Jul 24, 2013 | 09:41 AM
  #9  
Alice89's Avatar
Member
iTrader: (6)
 
Joined: Dec 2011
Posts: 497
Likes: 8
From: DFW
Re: To Raise or to Lower

Originally Posted by plum92_camaro
I've never seen or heard of lowers. My understanding is the rubber isolators were only to stop the transfer of road noise to the body.
If that's why GM put isolators in then they failed, I removed mine and notice no difference what so ever in ride quality. I'm running heater hose and there is also no audible road noise increase.

I was under the impression that they where in place to keep the spring from rusting to the spring perch? That and most importantly to keep the metal on metal squeaking at bay.
Reply
Old Jul 24, 2013 | 04:13 PM
  #10  
jazzdadss's Avatar
Thread Starter
Senior Member
15 Year Member
 
Joined: Dec 2009
Posts: 702
Likes: 4
From: Texas
Car: 1989 IROC LSX
Engine: Swapped LS6 Forged by LME
Transmission: 4L65E
Axle/Gears: 3.73
Re: To Raise or to Lower

I got these #s from LS1tech. They are for a fourth gen.
uppers # 10290379
Lowers # 10247105

I ordered the lowers from the chevy house today and they will be here tomorow. I will let you know how they do. Thanks all!
Reply
Old Jul 24, 2013 | 04:31 PM
  #11  
Alice89's Avatar
Member
iTrader: (6)
 
Joined: Dec 2011
Posts: 497
Likes: 8
From: DFW
Re: To Raise or to Lower

Cool, and good luck on the install! Let us know if your Camaro's ride height evens out.

BTW, I honestly didn't know there were lower isolators.
Reply
Old Jul 24, 2013 | 04:44 PM
  #12  
redneckjoe's Avatar
Supreme Member
 
Joined: Sep 2011
Posts: 2,080
Likes: 34
From: Spring Hill, Fl.
Car: 87 iroc-z
Engine: 454
Transmission: th350
Axle/Gears: 3.73
Re: To Raise or to Lower

heres a way to raise or lower your car on the cheap.
http://www.autozone.com/autozone/acc...questid=584456
Reply
Old Jul 24, 2013 | 05:59 PM
  #13  
jazzdadss's Avatar
Thread Starter
Senior Member
15 Year Member
 
Joined: Dec 2009
Posts: 702
Likes: 4
From: Texas
Car: 1989 IROC LSX
Engine: Swapped LS6 Forged by LME
Transmission: 4L65E
Axle/Gears: 3.73
Re: To Raise or to Lower

Originally Posted by redneckjoe
heres a way to raise or lower your car on the cheap.
http://www.autozone.com/autozone/acc...questid=584456

Thanks Joe but those things are just plain BAD! Won't use them ever. Have you ever seen what they do to a spring over time
Reply
Old Jul 26, 2013 | 03:50 PM
  #14  
jazzdadss's Avatar
Thread Starter
Senior Member
15 Year Member
 
Joined: Dec 2009
Posts: 702
Likes: 4
From: Texas
Car: 1989 IROC LSX
Engine: Swapped LS6 Forged by LME
Transmission: 4L65E
Axle/Gears: 3.73
Re: To Raise or to Lower

Looks like the new lower isolators are just shy of 1/4 inch.


Lower Isolator mounted on axle. Fit perfect.



Overall heighth of the upper isolators, stock 3rd gen right about 1.5 inches. Anyone got a 4th gen upper to measure?



Overall, the rear went from 27.5 at the wheel lip to 26.5. This is with car unloaded (no junk in the trunk) and a full tank of gas. This did level it out. I will ride like this for a bit and if I need to raise it a bit more may be someone can chime in with a measurement of the 4th gen upper Isolator.


Last edited by jazzdadss; Jul 26, 2013 at 03:55 PM. Reason: Editing.
Reply
Old Jul 29, 2013 | 03:00 PM
  #15  
jazzdadss's Avatar
Thread Starter
Senior Member
15 Year Member
 
Joined: Dec 2009
Posts: 702
Likes: 4
From: Texas
Car: 1989 IROC LSX
Engine: Swapped LS6 Forged by LME
Transmission: 4L65E
Axle/Gears: 3.73
Re: To Raise or to Lower

4th gen uppers, anyone got a measurement?
Reply
Old Aug 20, 2013 | 11:10 AM
  #16  
jazzdadss's Avatar
Thread Starter
Senior Member
15 Year Member
 
Joined: Dec 2009
Posts: 702
Likes: 4
From: Texas
Car: 1989 IROC LSX
Engine: Swapped LS6 Forged by LME
Transmission: 4L65E
Axle/Gears: 3.73
Re: To Raise or to Lower

TTT, Anyone?

Last edited by jazzdadss; Aug 28, 2013 at 03:24 PM.
Reply
Old Aug 28, 2013 | 03:28 PM
  #17  
jazzdadss's Avatar
Thread Starter
Senior Member
15 Year Member
 
Joined: Dec 2009
Posts: 702
Likes: 4
From: Texas
Car: 1989 IROC LSX
Engine: Swapped LS6 Forged by LME
Transmission: 4L65E
Axle/Gears: 3.73
Re: To Raise or to Lower

OK, finaly had some time to do some research on this. The part # for the upper spring isolator is the same # from 1982-2002. 3rd and 4th gen F-bodies use the same one so there is no difference in heigth. Guess I will be putting the factory rear springs back in and trying some new V6 springs in the front. We'll see if this makes it sit right.
Reply
Old Aug 28, 2013 | 03:45 PM
  #18  
Richboll's Avatar
Supreme Member
 
Joined: Apr 2011
Posts: 1,051
Likes: 0
From: Huntsville, AL
Car: 89 Black IROC-Z convertible
Engine: 305 TBI
Transmission: Auto
Re: To Raise or to Lower

How about air shocks? I have them on my El Camino and they maintain whatever amount of air that I put into them. Just a thought.
Reply
Old Aug 28, 2013 | 08:41 PM
  #19  
hellz_wings's Avatar
Supreme Member
15 Year Member
iTrader: (2)
 
Joined: May 2007
Posts: 2,340
Likes: 2
From: Montreal, Canada
Car: 1986 Chevrolet Camaro IROC-Z28
Engine: TPI 310ci (LB9)
Transmission: Custom Rebuilt 700R4 - 2600 Stall
Axle/Gears: 10 bolt, 3.73 Eaton Limited-Slip
Re: To Raise or to Lower

Hmmm.. How come they never put a lower isolator from the factory..? It would appear that it would reduce the metal to metal contact on the axle and spring, and maybe on the a-arm to spring as well.
Reply
Old Aug 28, 2013 | 08:49 PM
  #20  
theoutlaw's Avatar
Junior Member
 
Joined: May 2010
Posts: 9
Likes: 0
From: Gulfport, Mississippi
Car: 88 Camaro Sport Coupe
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73
Re: To Raise or to Lower

It'll cost a lot more but if got adjustable coil-overs for the rear you could easily set it where you want it.
Reply
Old Sep 3, 2013 | 11:08 AM
  #21  
jazzdadss's Avatar
Thread Starter
Senior Member
15 Year Member
 
Joined: Dec 2009
Posts: 702
Likes: 4
From: Texas
Car: 1989 IROC LSX
Engine: Swapped LS6 Forged by LME
Transmission: 4L65E
Axle/Gears: 3.73
Re: To Raise or to Lower

Saddly I think we are gonna just pick it back up. I put the factory coils back in the rear and Will try V6 front springs. I just dont like the ride charactoristics with it lowered.....
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
88SS6SPEED
Engine/Drivetrain/Suspension Parts for Sale
7
Nov 11, 2015 07:05 AM
jbates346
Suspension and Chassis
7
Oct 21, 2015 01:50 PM
roysatikas
Transmissions and Drivetrain
0
Sep 22, 2015 08:15 PM
camaronils
Transmissions and Drivetrain
5
Sep 20, 2015 02:57 PM




All times are GMT -5. The time now is 11:26 AM.