Prothane Coil Spring Inserts
Universal Coil Spring Inserts
Prothane offers Coil Spring Inserts in five sizes to eliminate the need for stacking. Dampening inserts, when installed, should be shorter than the springs installed height:
- 1 to 3 inches less for Chevrolet
- 3/4 to 1 1/2 inches less for Dodge
- 2 to 3 inches less for Ford
Each set includes one pair of inserts

Images | Part Number | Height | Outer Diameter | Part Type |
---|---|---|---|---|
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191701 | INCH: 2-1/2 (2.50) MM: 63.5 |
INCH: 3-3/4 (3.75) MM: 95.25 |
2 Ring |
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191702 | INCH: 3-1/2 (3.50) MM: 88.9 |
INCH: 3-3/4 (3.75) MM: 95.25 |
3 Ring |
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191703 | INCH: 5 MM: 127 |
INCH: 3-3/4 (3.75) MM: 95.25 |
4 Ring |
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191704 | INCH: 7-1/2 (7.50) MM: 190.5 |
INCH: 3-3/4 (3.75) MM: 95.25 |
6 Ring |
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191705 | INCH: 10-1/2 (10.50) MM: 266.7 |
INCH: 3-3/4 (3.75) MM: 95.25 |
8 Ring |