Drive Shaft Request
#30087 from Scott Peterson · Rule change · TB 21-02 (2021-02 Fastrack)
In GCR, Section 9.1.4.L.1., change as follows:
"Alternate differential housings are permitted from the same model of vehicle. Differential may be open, locked, or of a limited-
slip type. The internals of limited-slip type differentials may be modified to change the amount of slip limiting. Differentials with
external, or electric, adjustability are prohibited. Driveshaft and half-shafts may be aftermarket, but shall be the OEM-type and
use the same types of materials as stock steel or aluminum. Drive shafts may be replaced by one piece drive shafts, and
conversely."