Rear springs, Caprice vs. Fleetwood? - Chevy Impala SS Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 21 (permalink) Old 07-01-2018, 05:40 PM Thread Starter
Senior Member
 
95DoubleBubble's Avatar
 
Join Date: Jul 2011
Location: brooklyn, MD
Posts: 677
 
Rear springs, Caprice vs. Fleetwood?

Are the rear coil springs in a Caprice taller than in a Fleetwood? I have a 94 Fleetwood Brougham with the auto level air shock package and what the ID tag in the trunk calls out as soft suspension package. My factory compressor no longer works and I had changed out the factory air shocks for Monroe's but they were an older pair that I had in the garage for about 5 years which ended up dry rotting and breaking so I replaced them with some Gabriel hijackers. Now here I am not even 2,000 miles later and I've either blown and Airline or blown out one of the shocks, keep in mind I only run them around 60 PSI, and that's just so the rear end will sit at the level height it supposed to. So I'm not sure if either the springs are shorter or they're just worn the hell out, but the attached picture is how low the car sits right now because the shocks have no air in them.
Attached Thumbnails
Click image for larger version

Name:	IMG_20180629_175735445_HDR.jpg
Views:	52
Size:	194.1 KB
ID:	178602  


Big Phil, certified lowrider-aholic

http://s55.photobucket.com/albums/g134/lowriderphil/
95DoubleBubble is offline  
Sponsored Links
Advertisement
 
post #2 of 21 (permalink) Old 07-01-2018, 06:42 PM
Senior Member
 
Z09B4U's Avatar
 
Join Date: Jul 2015
Location: Canada
Posts: 826
 
I think the coils were different from the factory. When I checked Rockauto both Moog and ACDelco rear coils were the same for D and B body. You have different front coils from the B body.


Quote:
Are the rear coil springs in a Caprice taller than in a Fleetwood?
What they look like has nothing to do with the height the car rides at. It is a mix of length and weight on the spring that sets the height.

Z09B4U
Z09B4U is offline  
post #3 of 21 (permalink) Old 07-01-2018, 09:41 PM
Senior Member
 
Join Date: Jan 2001
Location: St. Louis
Posts: 7,640
 
Quote:
Originally Posted by 95DoubleBubble View Post
Are the rear coil springs in a Caprice taller than in a Fleetwood?



As Z09 says, it doesn't matter. Sring rate is the important part.



the ID tag in the trunk calls out as soft suspension package. My factory compressor no longer works



Ok, that's FE1. FE1 is one car does not necessarily use the same spring as another car. It just means soft.



I had changed out the factory air shocks for Monroe's but they were an older pair that I had in the garage for about 5 years which ended up dry rotting


No, airshocks sitting on a shelf don't "rot" in 5 years.



I replaced them with some Gabriel hijackers.



Too bad. The best way to think of airsshocks is that they aren't really real shocks. They're air bladders to jack extra weight bearing or ht. into the ride without a lot of expensive actual performance valving or dampening thrown in.



Now here I am not even 2,000 miles later and I've either blown and Airline or blown out one of the shocks.


My guess is a line popped off, exhaust burnt a boot, or a leaking fitting or Schroeder valve.



..."(I ran them with enough pressure") just so the rear end will sit at the level height it supposed to.



The design called for the coils at rest to set the car at 1" or so less than correct riding ht., the the rest always made up with the auto level. The car will never set right without the air compressor working perfect. Our rigs are just very expensive Chevys. No GM compressors are supposed to work right after 20% of a century. For crissake the same compressor was used on '90's M/L and dustbuster vans.....



So I'm not sure if either the springs are shorter or they're just worn the hell out.


So yes, they're shorter than they're supposed to be to start with. And yes, they're worn out as hell after 20+ years.



...."the attached picture is how low the car sits right now because the shocks have no air in them.


Yah, perfectly normal. Here's the fix. Find someone you trust to sell you a set of sacked out old SS coils front and rear. Get rid of the air compressor. Get some real shocks. Monroe SS or Bilstein. Get some 'Airlift 1000' from Summit or Jegs. Use the heat shields. Put in 6-9#.


PS: To Z06'es another note good point that I take online application charts with a grain of saccharin. The rear coils on FWB and SS are no freakin' way close. AMHIK.

Good luck.

\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear). Finally, wait for it... LT-4 knock module!
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, yes again... LT-4 knock module!
96 Black is offline  
 
post #4 of 21 (permalink) Old 07-01-2018, 09:55 PM Thread Starter
Senior Member
 
95DoubleBubble's Avatar
 
Join Date: Jul 2011
Location: brooklyn, MD
Posts: 677
 
Quote:
Originally Posted by 96 Black View Post
Good luck.
Holy crap that was a serious explanatory reply LOL. In all honesty the only reason I put the air shocks on the first place was because the factory ones were long shot and my only plan was to use them to raise the back end up to make clean the White Walls easier at the carwash but I didn't realize just how saggy my stock Springs are. I was looking at the different Moog Springs that fit the D&B bodies D & B bodies and noticed a offer one that is a constant rate and one that is a variable rate but I honestly don't know what that means in terms of ride quality

Big Phil, certified lowrider-aholic

http://s55.photobucket.com/albums/g134/lowriderphil/
95DoubleBubble is offline  
post #5 of 21 (permalink) Old 07-01-2018, 10:16 PM
Senior Member
 
Join Date: Jan 2001
Location: St. Louis
Posts: 7,640
 
LOL back. The neat thing 'bout this form is all this has been covered (exhaustively? in-inexhaustibly? way a lot?) decades before. Search be the hidden Shangri-ra.



Autolevelor setup and airshocks bad -- bad . Real shocks and Airlifts good. Coils of your choice.


No freakin' way to get them whitewalls clean 'cept a dam floorjack and the skirts off. Or much simpler roll the car 2 ft. in tha middle of warshing it.

\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear). Finally, wait for it... LT-4 knock module!
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, yes again... LT-4 knock module!
96 Black is offline  
post #6 of 21 (permalink) Old 07-01-2018, 10:30 PM
Senior Member
 
gbhs72's Avatar
 
Join Date: Nov 2015
Location: Lawton, Ok
Posts: 1,435
 
No freakin' way to get them whitewalls clean 'cept a dam floorjack and the skirts off. Or much simpler roll the car 2 ft. in tha middle of warshing it.[/QUOTE]

Bob, I had to laugh. You don't know how close you are to speaking Baltimorian. Warshing as in Warshington D.C. Wooder from the zinc. 95DoubleBubble lives just outside Baltimore. I was raised several miles further south of him. I speak normal. No offence Phil.

Mark: Snowman-33

93 9C1: Work & Cubic Ca$h This started with a new headlight and fender Celeritas In Conficiendo
gbhs72 is offline  
post #7 of 21 (permalink) Old 07-01-2018, 10:42 PM Thread Starter
Senior Member
 
95DoubleBubble's Avatar
 
Join Date: Jul 2011
Location: brooklyn, MD
Posts: 677
 
Quote:
Originally Posted by gbhs72 View Post
No freakin' way to get them whitewalls clean 'cept a dam floorjack and the skirts off. Or much simpler roll the car 2 ft. in tha middle of warshing it.
Bob, I had to laugh. You don't know how close you are to speaking Baltimorian. Warshing as in Warshington D.C. Wooder from the zinc. 95DoubleBubble lives just outside Baltimore. I was raised several miles further south of him. I speak normal. No offence Phil.

Mark: Snowman-33[/QUOTE]

Yeah it can be annoying washing this Beast, right now I have a set of 215 75 on the car just because I needed tires in a pinch and they were the only size in stock with a white wall. With the hijackers I had it figured out that if I pop the skirt off and raise them to 140 PSI it was just clear enough that I could scrub them with the brush LOL. Of course if the Springs held the car up at the proper height I probably wouldn't need that much psi

Big Phil, certified lowrider-aholic

http://s55.photobucket.com/albums/g134/lowriderphil/
95DoubleBubble is offline  
post #8 of 21 (permalink) Old 07-02-2018, 04:28 AM Thread Starter
Senior Member
 
95DoubleBubble's Avatar
 
Join Date: Jul 2011
Location: brooklyn, MD
Posts: 677
 
Quote:
Originally Posted by gbhs72 View Post
No freakin' way to get them whitewalls clean 'cept a dam floorjack and the skirts off. Or much simpler roll the car 2 ft. in tha middle of warshing it.
Bob, I had to laugh. You don't know how close you are to speaking Baltimorian. Warshing as in Warshington D.C. Wooder from the zinc. 95DoubleBubble lives just outside Baltimore. I was raised several miles further south of him. I speak normal. No offence Phil.

Mark: Snowman-33[/QUOTE]


None taken, I grew up in Glen Burnie, my maternal grandmother was from Severn so I am familar with things like "did you wursh your hands" and "go wrench that off in the zinc"

Big Phil, certified lowrider-aholic

http://s55.photobucket.com/albums/g134/lowriderphil/
95DoubleBubble is offline  
post #9 of 21 (permalink) Old 07-02-2018, 04:34 AM Thread Starter
Senior Member
 
95DoubleBubble's Avatar
 
Join Date: Jul 2011
Location: brooklyn, MD
Posts: 677
 
Quote:
Originally Posted by 96 Black View Post
Good luck.

They may not have been so much dry rotted but I bought them for my Caprice back in December '12 but never installed because I went with hydraulics in May '13, they sat in a tote on the back porch till I bought the Caddy in August '15 when the caprice was totaled by insurance company then the sat in the Caddy trunk until I installed them in April '17 ran at a constant 60-70 psi till one popped last month. I assumed dry rot as the rubber split and cracked the same way my factory 12 year old Town Car rear air springs did back in '05.

Big Phil, certified lowrider-aholic

http://s55.photobucket.com/albums/g134/lowriderphil/
95DoubleBubble is offline  
post #10 of 21 (permalink) Old 07-02-2018, 05:41 AM Thread Starter
Senior Member
 
95DoubleBubble's Avatar
 
Join Date: Jul 2011
Location: brooklyn, MD
Posts: 677
 
So I think I'm gonna go with these ACDelco 45H3011 on rockauto for $52, details say 16.4" relaxed length and 12.8" compressed length.
For shocks if its just a bad line or fitting I will stick with the hijackers for now but if their bad then gonna go with either the Delco 53020 at $25 each
or the Gabriel 43049 load carrier at $75 for the pair.

Big Phil, certified lowrider-aholic

http://s55.photobucket.com/albums/g134/lowriderphil/
95DoubleBubble is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy Impala SS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome