what is the closet replacement rear springs to the original ss springs? - Chevy Impala SS Forum
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post #1 of 19 (permalink) Old 08-18-2015, 10:31 PM Thread Starter
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Talking what is the closet replacement rear springs to the original ss springs?

I have gone crazy trying to get my impala to sit at the same height on both sides. It sits about 3/4" lower on passenger side than drivers side in the rear and 1/2" lower in the front passenger side. I am replacing the rear shocks (what a pain in the rear) and did the passenger side already (to no effect). I searched the forums and came up with a lot of different springs for the car. I want stock height and am willing to sacrifice ride quality for it. I found Moog 5245, moog 5419, and moog 5387 as possible replacements. Which one has worked the best for all that have replaced their springs? I have tried all over to find the stock 22132375 springs to no avail. Any and all help would be appreciated. By the way I have a cherry red 1996 Impala SS that I bought new in April of 1997. It rarely sees any service other than transporting my kids around. My wife really likes driving it around and getting compliments for it.
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post #2 of 19 (permalink) Old 08-19-2015, 06:53 AM
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First two would be caprice height springs. One soft, other stiff.

The 5387 is probably as close as you'll get in terms of stiffness and height of an SS spring. It might sit about 0.3" higher than stock SS, once it's settled in.

Or, you can try a 5415 which would be 10% stiffer and 0.1" shorter going by it's specs.
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post #3 of 19 (permalink) Old 08-19-2015, 08:09 AM
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2 Completely Different Issues. Selecting coils for preferred ride ht. is distinct from diagnosing uneven riding level side-to-side.

Coil selection on its own is quite subjective but you'll get plenty of suggestions from other's experimentation I bet.

Shocks have nothing to do with ride ht. The only exception is for gas-charged shocks, and then only for a month or so until they relax a bit.

For correcting uneven tilt you can search:
"Mis-punched rear control arm mount hole during original frame production" (there's a TSB on it I think)
"Bent - twisted front or rear stab bar(s)" (personal experience)
"Collision damaged A-arm" (personal experience)
"Seized shock" (on an old Camaro once)
"Decayed/rotted body bushings"
"Incorrect front coil orientation or not seated correctly in perch" (not applicable if you've never replaced anything yet)
"Deferentially sacked out old coil" (potentially your case if all still OEM)

\'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!
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post #4 of 19 (permalink) Old 08-19-2015, 10:26 AM
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Quote:
Originally Posted by 91ss View Post
.....Or, you can try a 5415 which would be 10% stiffer and 0.1" shorter going by it's specs.
AFAIK, the MOOG 5415 is NOT a B-body spring.....

KW

1996 BBB SS, 398ci Solid Roller LT4, TorqHead 24x Conversion


1995 DCM SS, LS3, Texas Speed 260cc PRC heads, Lingenfelter GT1-1 cam, V-max 90mm TB, Headman 1 7/8 LT Headers, 2 1/2" cat-back, 3200 Circle-D TC, 3.73 gears -- 493HP/434TQ @ the wheels (Daily Driver)


2014 Chevy SS; Low Lash Solid Roller 429ci LS3 -- 548HP/464TQ @ the wheels....

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post #5 of 19 (permalink) Old 08-19-2015, 11:53 AM
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Quote:
Originally Posted by KW Baraka View Post
AFAIK, the MOOG 5415 is NOT a B-body spring.....

KW
True, it's just a spring. But listed dimensions match a b-body specific spring.
Only unknown is the pigtail ID. Hence the 'try'...
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post #6 of 19 (permalink) Old 08-19-2015, 12:10 PM
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I know these cars are big and all but I was wondering which part of the car is the closet? Would that be the trunk? The trunk has springs. LOL!

Mike--Hamilton Chevy
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post #7 of 19 (permalink) Old 08-19-2015, 12:19 PM
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LOL... no, it's the 5415 spring. It's still in the closet about coming out and being a b-body spring...
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post #8 of 19 (permalink) Old 08-19-2015, 11:20 PM Thread Starter
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Sorry for the misspelling. Long day of work and lots of frustration searching for springs are my only excuse. Thank you 91ss for your input. I went ahead and ordered a set of Moog 5387 springs. I will relate what I have done and what I have learned after they get here and are installed.

Last edited by 3puttjay; 08-19-2015 at 11:36 PM.
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post #9 of 19 (permalink) Old 08-21-2015, 12:01 PM
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Open RockAuto links to read/compare specs--all of them should work as far as pigtail size

http://www.rockauto.com/catalog/more...&jnid=4&jpid=0

MOOG 5387 Coil Spring
BUICK CENTURY (1973 - 1976)
BUICK REGAL (1974 - 1976)
BUICK SPECIAL 1968
CHEVROLET MALIBU (1975 - 1977)
CHEVROLET MONTE CARLO (1975 - 1977)
OLDSMOBILE CUTLASS (1973 - 1976)
OLDSMOBILE CUTLASS SALON 1976
OLDSMOBILE CUTLASS SUPREME (1973 - 1976)
PONTIAC BONNEVILLE 1969


http://www.rockauto.com/catalog/more...&jnid=6&jpid=0

MOOG 5245 Coil Spring
BUICK CENTURY 1977
BUICK ELECTRA (1966 - 1983)
BUICK LESABRE (1965 - 1985)
BUICK REGAL 1977
BUICK RIVIERA (1966 - 1970)
BUICK ROADMASTER (1992 - 1996)
BUICK WILDCAT (1965 - 1970)
CADILLAC BROUGHAM (1987 - 1990)
CADILLAC DEVILLE 1984


http://www.rockauto.com/catalog/more...&jnid=8&jpid=1

MOOG 5419 Coil Spring

BUICK ELECTRA 1980
BUICK ESTATE WAGON (1977 - 1980)
BUICK LESABRE 1985
BUICK ROADMASTER (1994 - 1996)
BUICK SPORTWAGON (1969 - 1970)
CADILLAC FLEETWOOD (1984 - 1985)
CHEVROLET CAPRICE (1979 - 1996)
CHEVROLET IMPALA (1977 - 1985)
OLDSMOBILE CUSTOM CRUISER (1977 - 1983)

Bill Harper
ISSCA #127
[email protected]
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post #10 of 19 (permalink) Old 08-21-2015, 07:11 PM
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Quote:
Originally Posted by 91ss View Post
True, it's just a spring. But listed dimensions match a b-body specific spring........
OK.....learn something new every day .

KW

1996 BBB SS, 398ci Solid Roller LT4, TorqHead 24x Conversion


1995 DCM SS, LS3, Texas Speed 260cc PRC heads, Lingenfelter GT1-1 cam, V-max 90mm TB, Headman 1 7/8 LT Headers, 2 1/2" cat-back, 3200 Circle-D TC, 3.73 gears -- 493HP/434TQ @ the wheels (Daily Driver)


2014 Chevy SS; Low Lash Solid Roller 429ci LS3 -- 548HP/464TQ @ the wheels....

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