MOOG 6321 Rear Coil Springs - Pair

  • moog-6321 Rear Coil Springs - Pair

Rear Coil Springs - Pair

Manufacturer: MOOG
Part Number: moog-6321
Price: $211.18

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  • Moog fulfills their warranty through their individual dealers. That means that in order to receive warranty support, you will have to refer back to the original dealer you purchased the part from. Be sure to check the dealer's warranty support before you buy the part to make sure that they will properly support the warranty. If a dealer will only refer you back to the manufacturer in order to receive warranty support, then you may not actually have any warranty at all.

    Part of our warranty process includes reviewing evidence of the defect provided by the customer. This is easily accomplished by providing video or images of the defective part so our staff can verify the claim and move forward with the warranty process. This removes the necessity of shipping the part back to our facility at the customer's expense.

    WARRANTY:

    Moog Premium Steering Components carry a Limited Lifetime Warranty. Moog R-Series Control Arms, Hub Assemblies, and Knuckle Assemblies carry a 3 Year or 36,000 mile Warranty (whichever occurs first). And Moog CV Axles carry a 2 Year Warranty. Above warranties are based on customers who own a car, van, SUV or light truck (less than 8,000 lbs. or 3,625 kilograms).

    Moog warranties their parts to be free of defects in materials and/or workmanship during these timeframes as measured from the date of purchase.

    If a Moog part should fail due to materials or manufacturing defect while under warranty, we will provide a replacement of the part upon return of the defective part.

    Limited to ONE replacement during guarantee period

    Wearable RUBBER parts are not covered under warranty (Dust boots, bushings, bump stops, etc.)

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FitmentRear Coil Springs - Pair moog-6321 fits these vehicles:
Details

Specific Fitment Distinctions:

  • Position: Rear.
  • Notes: Constant Rate Spring.
1967 Buick Skylark
  • (3.7L V6, Convertible, Standard Duty)
  • (3.7L V6, Hardtop, Standard Duty)
  • (4.9L V8, 5.6L V8, Standard Duty)
1968 Buick Skylark
1970 Oldsmobile Cutlass Supreme
  • (5.7L V8, Standard Duty)
1969 Buick Skylark
  • (5.7L V8, Convertible, Custom, Standard Duty)
  • (5.7L V8, Hardtop, Custom, Standard Duty)
  • (5.7L V8, Sedan, Custom, Standard Duty)
  • (5.7L V8, Standard Duty)
1970 Buick Skylark
  • (4.1L L6, Standard Duty)
1971 Buick Skylark
  • (4.1L L6, Standard Duty)
  • (5.7L V8, Convertible, Custom, Standard Duty)
  • (5.7L V8, Coupe, Standard Duty)
  • (5.7L V8, Sedan, Standard Duty)
1972 Buick Skylark
  • (Convertible, Custom, Standard Duty)
  • (Coupe, Standard Duty)
  • (Sedan, Standard Duty)
1967 Buick Special
  • (Hardtop, Deluxe, Standard Duty)
  • (Sedan, Standard Duty)
1968-1969 Buick Special
  • (5.7L V8, Coupe, Standard Duty)
  • (5.7L V8, Sedan, Standard Duty)
1968 Chevrolet Chevelle
  • (3.8L L6, 4.1L L6, Hardtop, Standard Duty)
1984 Chevrolet Monte Carlo
  • (3.8L V6, 5.0L V8)
  • (5.7L V8, DIESEL)
1985 Chevrolet Monte Carlo
  • (4.3L V6, 5.0L V8)
1967 Oldsmobile Cutlass
  • (4.1L L6, 5.4L V8, Convertible, Standard Duty)
  • (4.1L L6, Sedan, Standard Duty)
  • (5.4L V8, Hardtop, Holiday, Standard Duty)
1969 Oldsmobile Cutlass
1969 Oldsmobile Cutlass Supreme
  • (5.7L V8, Hardtop)
1970 Oldsmobile Cutlass
1970 Oldsmobile F85
  • (4.1L L6, 5.7L V8, 7.5L V8, Standard Duty)
1971 Oldsmobile Cutlass
  • (4.1L L6, 5.7L V8, Hardtop, S, Standard Duty)
  • (4.1L L6, Sedan, Standard Duty)
  • (5.7L V8, Coupe, Standard Duty)
1972 Oldsmobile Cutlass
  • (5.7L V8, Coupe, Standard Duty)
  • (5.7L V8, Hardtop, Standard Duty)
1967 Oldsmobile Cutlass Supreme
  • (5.4L V8, Convertible, Standard Duty)
1972 Oldsmobile Cutlass Supreme
  • (5.7L V8, Hardtop, Standard Duty)
1967 Oldsmobile F85
1971 Oldsmobile F85
  • (4.1L L6, Sedan, Standard Duty)

Moog's Coil Springs

Designed to be more than OE replacements, Moog's coil springs come with a variety of shapes and ends. This selection, combined with Moog's lifetime warranty handled right here at DST, lends security to whichever choice you might make. While they are certainly higher quality than the OE springs, each of Moog's coil springs were designed to still have the same spring rate. Having the same spring rate allows for an easier install and a more accurate restoration for your vehicle's ride.

End Type

Coil Springs have three types of ends: Square, Tangential and Pigtail. It is important that you select a coil spring that matches BOTH your end types, otherwise the coil spring won't fit. Your OE coil spring could have the same type ends, or a combination of both.

Moog Universal Coil Springs Squared

Type 1: Squared

With a Squared end, the final coil is bent back to touch the coil before it. The easiest way to know if you have a squared end is to stand the coil spring straight up. A squared end will let the spring sit flat on the ground and stay standing.

Type 2: Tangential

A Tangential end looks like it would just keep on going forever if the spring continued. The last coil is not bent back and it is not the pigtail (see below). Instead, the tangential coil spring looks as though a normal coil was just cut, otherwise, it would have kept winding on forever. If you tried to stand it up straight, it would fall.

Moog Universal Coil Springs Squared
Moog Universal Coil Springs Squared

Type 3: Pigtail

The Pigtail is probably the easiest to identify. Its defining characteristic is the pig tail shape at the end. The final coil is squared off, but is a much smaller diameter than the rest of the spring.

Spring Type

Moog offers two types of springs for a universal fitment: Constant Rate and Variable Rate.

Constant Rate

Moog Constant Rate coil springs return your vehicle to the original specifications. The rate at which the spring compresses and rebounds remains constant regardless of the amount of load on the spring. These coil springs are heat treated, have a weather resistant finish and use a urethane protective tube.

Moog Universal Coil Springs Bar Diameter
Moog Universal Coil Springs Bar Diameter

Variable Rate

Moog Variable Rate coil springs can be used as an original replacement or an upgrade to carry heavier loads. The resistance changes as the spring compresses, becoming progressively stiffer as the load on the springs increase. The springs include a "comfort range" with tightly spaced coils to give a smooth ride, and include a "load range" with widely spaced coils to minimize deflection and maintain chassis height when the vehicle load increases.

MOOG moog-6321

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MOOG moog-6321

5 out of 5 based on 1 user reviews. Write a Review

C
verified_user

starstarstarstarstar" OK "

Springs replaced original 67 Olds 4-4-2 springs.\nMoog didnt show a part number for a replacement for this car.\nI ordered HD springs for a Cutlass which seem to work OK, but, the 4-4-2 spring is different which I think makes a difference in handling.\nAlthough the replacement springs is the same height, it has one less coil, which makes the suspension feel somewhat "spongy" compared to the 4-4-2 spring.\nI think it would be worthwhile for MOOG to make an exact replacement spring for the 67 4-4-2.\nMy main reason for replacing tthe springs was to raise the car a few inches, but, i didnt really know which springs would accomplish what I wanted.\nI bought the #6321s on a recommendation on an Olds website.\nIm not unhappy with these springs, but, I wanted to raise the car an inch or 2 more than these springs did.\nI guess its just a matter of trial and error.\nI just wasnt sure what to buy.\nI consider this experiment a partial success.\nI tried to anticipate the additional weight of installing factory air conditioning in the near future.\nI think when that happens, Ill be back where I started from

verified_user Verified Buyer - Charles Skaff - . MOOG moog-6321 - 5 out of 5
Fitment for moog-6321

All Vehicles: Constant Rate Spring.

YearsMakeModelSubModelPositionBody TypeEngine BaseFuel TypeDoorsNotes
1967BuickSkylarkRearConvertible, Hardtop3.7L V6, 4.9L V8, 5.6L V85, 7Standard Duty
1968BuickSkylarkRear5.7L V8Standard Duty
1969BuickSkylarkCustomRearConvertible, Hardtop, Sedan5.7L V85, 7Standard Duty
1970BuickSkylarkRear4.1L L6Standard Duty
1971BuickSkylarkCustomRearConvertible, Coupe, Sedan4.1L L6, 5.7L V85, 7Standard Duty
1972BuickSkylarkCustomRearConvertible, Coupe, Sedan5, 7Standard Duty
1967BuickSpecialDeluxeRearHardtop, Sedan5, 7Standard Duty
1968 - 1969BuickSpecialRearCoupe, Sedan5.7L V85, 7Standard Duty
1968ChevroletChevelleRearHardtop3.8L L6, 4.1L L67Standard Duty
1978 - 1980, 1985 - 1987ChevroletEl CaminoRear
1984ChevroletMonte CarloRear3.8L V6, 5.0L V8, 5.7L V8DIESEL
1985ChevroletMonte CarloRear4.3L V6, 5.0L V8
1985 - 1987GMCCaballeroRear
1967OldsmobileCutlass SupremeRearConvertible5.4L V87Standard Duty
1969OldsmobileCutlass SupremeRearHardtop5.7L V85
1970OldsmobileCutlass SupremeRear5.7L V8Standard Duty
1972OldsmobileCutlass SupremeRearHardtop5.7L V87Standard Duty
1967OldsmobileCutlassHolidayRearConvertible, Hardtop, Sedan4.1L L6, 5.4L V85, 7Standard Duty
1969OldsmobileCutlassRearHardtop5.7L V85
1970OldsmobileCutlassRear4.1L L6, 5.7L V8, 7.5L V8Standard Duty
1971OldsmobileCutlassSRearCoupe, Hardtop, Sedan4.1L L6, 5.7L V85, 7Standard Duty
1972OldsmobileCutlassRearCoupe, Hardtop5.7L V87Standard Duty
1967, 1971OldsmobileF85RearSedan4.1L L65Standard Duty
1970OldsmobileF85Rear4.1L L6, 5.7L V8, 7.5L V8Standard Duty
1983 - 1987PontiacGrand PrixRear
GradePremium
OEM part numbers MOOG 6321 replaces

MOOG 6321 is an aftermarket replacement part. It replaces the original equipment part numbers listed below for the vehicles this part fits. It is not a genuine manufacturer part, and the numbers below are shown for identification only.

Vehicle manufacturerOEM part number replaced
General Motors3924400
General Motors9787043
General Motors9787261

It also replaces these original equipment service part numbers.

Service brandService part number replaced
ACDelco45H2017