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Sanctioning Series
IMCA Racing: 
CRUSA Racing: 

Stock Car

Northern Sport Mod

A- Modified

Late Model 

620 Late Model

604 Late Model

B-Mod

A- Modified

Street Stock

USRA Racing:

Stock Car

B-Mod

A- Modified

Always check your rules and local track rule to determine if a shock is legal or not.

UMP Dirt Car:

Stock Car

B-Mod non sanction

A- Modified

Sportsman

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