1988-1996 Pontiac Grand Prix Rear Spring Insulator Kit

This part replaces:

  • Dorman 31066

  • New

This leaf spring insulator kit is just what you need to get your car in good shape again!

These insulators go on the ends of the rear leaf spring. In most cases the original insulators dry rot and fall off, resulting in a loud thumping noise in the rear when going over bumps.


  • Direct replacement
  • Built to strict quality control standards
  • Includes adhesive

These rear spring insulators makes a great replacement and have a good cost savings over a dealer unit.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

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Do these glue to the end of the spring or the frame where the leaf spring slides into?
Olds 95 on Jan 31, 2016
BEST ANSWER: These go on the spring ends

Vehicle Fit

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  • 1988-1996 Pontiac Grand Prix Rear Spring Insulator Kit
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Part #: 1ASRS00002

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