• MOOG-5543 Rear Coil Springs - Pair

Rear Coil Springs - Pair

Manufacturer: MOOG
Part Number: MOOG-5543


Price: $100.62

In Stock Ships Immediately

  • 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 a 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-5543 fits these vehicles:
Fits 1977 Oldsmobile 98 Heavy 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.

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.

Moog Universal Coil Springs Squared

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

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.

Moog Universal Coil Springs Squared

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

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 Universal Coil Springs Bar Diameter
Fitment for moog-5543
MakeModelYear RangePositionDrive WheelQuantity RequiredEngine BaseEngine VINEngine Designation
BuickCenturion1973Rear Quantity 1 5.7L 8Cyl V (-)(350)
BuickLeSabre1974Rear Quantity 1
BuickLeSabre1973Rear Quantity 1 5.7L 8Cyl V (-)(350)
BuickLeSabre1973Rear Quantity 1 7.5L 8Cyl V (-)(455)
BuickRiviera1976-1975Rear Quantity 1
CadillacEldorado1976Rear Quantity 1
ChevroletCaprice1976Rear Quantity 1 5.7L 8Cyl V (-)(350)
ChevroletCaprice1976Rear Quantity 1 6.6L 8Cyl V (-)(400)
ChevroletImpala1976Rear Quantity 1 5.7L 8Cyl V (-)(350)
ChevroletImpala1976Rear Quantity 1 6.6L 8Cyl V (-)(400)
Oldsmobile981977Rear Quantity 1
PontiacBonneville1975-1974Rear Quantity 1
PontiacCatalina1975-1974Rear Quantity 1
PontiacGrandville1975-1973Rear Quantity 1
PontiacParisienne1974Rear Quantity 1