As far as I know , there was only one 4 spd for the 41-46 trucks, for both Chevy & GMC, 1/2 ton on up.
Known as the sliding gear 4spd, meaning straight cut gears with no sinchros.
My 45 GMC 400 series 2 1/2 ton came with the same.
Some had the drum style parking brake bolted to them, while some of the bigger trucks had a lever bolted to it with rods & cables to the rear wheels.
Last edited by JeffL; 07/29/2014 1:54 AM.
