This is a cast iron "Dearborn sourced", aka Ford Toploader 3 speed specifically made for GM applications. Has an ID of RAT-E1. Never had it in a car, but the synchros, gears and bearings all look good. I can manually put it in all gears. No reason why it shouldnt work good. $175.00 plus shipping. I'm thinking Im going to need to build a crate or shrink wrap it to a pallet if you cant pick it up or use the Buick "railroad" for shipping.
Not to hijack the thread, but I have a heavy duty HURST 442 3spd shifter from 65 that was made for these trans available.
