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Jack Bolts and Spring Cups

Updated: Jun 6, 2023

There are many combos of cups and bolts and a bunch of part numbers, hope this helps in defining what they are. We build a good quick release jack bolt and it should be on every car. There is a list of bolts.


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Front and rear jack bolts and cups.
Jack bolts

The rear bolt and cup is really great when adding grip to a spring on top of the axle tube, the bearing allows the spring bind to be lower.

 

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Front and rear jack bolts and cups with 1/2" and 5/8" pins.
Manuel Jack Bolts

 

Manuel jack bolts are a solid pin on the end that come in 1/2" and 5/8" dia. each one comes in a 4", 6" or 8" length bolt. The 1/2" comes in a short pin while the 5/8" pin comes in a long and short pin. Each bolt will fit the correct cup for its pin size and is held in place with a snap ring. Cups come in ID and OD version in both 5" and 5.5" size.

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