The primary & secondary transmission humps for the high hump are the same and the same is also true for the low hump, but both the primary & secondary covers must be changed, since the primary & secondary covers are not interchangeable. The automatic & 3-speed transmissions were low hump and the 4-speed transmission had a high hump.
Last edited by 4-5-6 Chevy Trucks; 02/17/2014 2:34 AM.
