From Exotek Racing:
Extra heavy duty machined pom (delrin) spur gear with hardware for the B64 center gear diff.
Designed with a thicker mounting base but same teeth width and size as the stock 81t spur which eliminates the problem of the soft stock gears flexing and stripping out under high load race conditions.
Includes mounting hardware and instruction sheet- but bolts right on to the stock gear diff.
Not for the slipper set.