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Rubber Donut Drive Axle Coupling, Standard

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Many vintage formula cars and sports racers use these rubber drive donuts in the drive axles. Donut couplings allow significant angular deflection (up to 5 degrees constant or 10 degrees momentary) without requiring any lubrication. Rubber construction also absorbs shock loading and vibration. The rubber should be inspected for cracks after each season or after any off-track excursion.

This Standard capacity size was standard equipment on many Formula Ford, Formula Junior, and D Sports Racers. The 3.78" bolt circle was commonly used with the Hewland Mk-Series gearbox.

Standard Duty Rubber Donut Drive Axle Coupling
TypeApplicationConstructionTorque
Capacity
Bolt Circle
assembled
Overall Diameter
assembled
Bolt
Diameter
Width
at bolt holes
Standard FJ, FF, DSR,
Hillman Imp
Rubber 140 lb-ft 3.78" 5.38" 7/16" 1.83"


Save your suspension! We now offer Axle Savers, a bolt-on Centering Kit for Rubber Drive Donuts. This easy bolt-on kit can save your rear suspension in case of a drive donut failure.

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Status

1469-STD
Condition: New
SKU: 56971

Rubber Donut Drive Coupling, FF Standard

$84.99In Stock