MOOG 6321 Rear Coil Springs - Pair

  • moog-6321 Rear Coil Springs - Pair

Rear Coil Springs - Pair

Manufacturer: MOOG
Part Number: moog-6321
Price: $91.71

check_box In Stock check_box Ships Immediately


  • 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.

    WARRANTY:

    Moog Premium Steering Components carry a Limited Lifetime Warranty. Moog R-Series Control Arms, Hub Assemblies, and Strut Assemblies carry a 3 Year Warranty.

    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.

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

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

Product Reviews for

5 Star (1)
100%
4 Star (0)
0%
3 Star (0)
0%
2 Star (0)
0%
1 Star (0)
0%
starstarstarstarstar

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
MakeModelYear RangePositionDrive WheelQuantity RequiredEngine BaseEngine VINEngine Designation
BuickSkylark1972Rear Quantity 1
BuickSkylark1971-1970Rear Quantity 1 4.1L L6 250cid
BuickSkylark1971-1968Rear Quantity 1 5.7L V8 350cid
BuickSkylark1967Rear Quantity 1 3.7L V6 3687cc/225cid
BuickSkylark1967Rear Quantity 1 4.9L V8 4917cc/300cid
BuickSkylark1967Rear Quantity 1 5.6L V8 5573cc/340cid
BuickSpecial1969-1968Rear Quantity 1 5.7L V8 5736cc/350cid
BuickSpecial1967Rear Quantity 1
ChevroletChevelle1968Rear Quantity 1 3.8L L6 230cid
ChevroletChevelle1968Rear Quantity 1 3.8L L6 3769cc/230cid
ChevroletChevelle1968Rear Quantity 1 4.1L L6 250cid
ChevroletChevelle1968Rear Quantity 1 4.1L L6 4097cc/250cid
ChevroletChevelle1968Rear Quantity 1 4.1L L6 4098cc/250cid
ChevroletEl Camino1987-1978Rear Quantity 1
ChevroletMonte Carlo1985-1984Rear Quantity 1 5.0L V8 305cid
ChevroletMonte Carlo1985Rear Quantity 1 4.3L V6 262cid
ChevroletMonte Carlo1984Rear Quantity 1 3.8L V6 229cid
ChevroletMonte Carlo1984Rear Quantity 1 3.8L V6 3800cc/231cid
ChevroletMonte Carlo1984Rear Quantity 1 5.7L V8 350cid
GMCCaballero1987-1985Rear Quantity 1
OldsmobileCutlass1972-1969Rear Quantity 1 5.7L V8 350cid
OldsmobileCutlass1972Rear Quantity 1 5.7L V8 5733cc/350cid
OldsmobileCutlass1971-1970Rear Quantity 1 4.1L L6 4097cc/250cid
OldsmobileCutlass1971-1967Rear Quantity 1 4.1L L6 250cid
OldsmobileCutlass1971-1967Rear Quantity 1 4.1L L6 4098cc/250cid
OldsmobileCutlass1967Rear Quantity 1 5.4L V8 5409cc/330cid
OldsmobileCutlass Supreme1972-1969Rear Quantity 1 5.7L V8 350cid
OldsmobileCutlass Supreme1967Rear Quantity 1 5.4L V8 330cid
OldsmobileF851970Rear Quantity 1 4.1L L6 250cid
OldsmobileF851970Rear Quantity 1 5.7L V8 350cid
OldsmobileF851970Rear Quantity 1 7.5L V8 455cid
OldsmobileF851967Rear Quantity 1 4.1L L6 4097cc/250cid
OldsmobileF851967Rear Quantity 1 4.1L L6 4098cc/250cid
PontiacGrand Prix1987-1983Rear Quantity 1