The Stovebolt Site Forums The Shop Area Driveline 1947 3600 3spd floor shift, also came with a 4spd in the bed

So I'm trying to find out if the loose 4spd trans that came along with my truck is correct for the truck. The trans was passed along thru a few owners, until I ended up with it. Was a 4spd on the floor ever offered in the 3/4 ton? Since I've never driven my new project, I don't know how much I'll hate the 3spd, but hi/low and a granny gear does'nt sound like a cruiser for the streets. Is anyone familiar with the 4spds that fit the stock engine? Sorry I don't have any info off the 4spd case yet, I'll try and get that soon. Thanks.

The SM 420 4 speed was an option in the 3600 trucks and standard in all the 3800 and larger trucks.

Hy Marko2727, I believe the four speed transmission in 1947 was the old sliding gear transmission and not the SM420, the older transmission has a reverse lockout lever which runs up the side of the main shifter lever. The older transmission is not synchronized at all, and you must double-clutch to shift it. A picture of the transmission in question would be very helpful in identifying it, hope that helps.

Thanks guys, now I cant wait to get a better look at that transmission. Its still at the storage yard with the truck I'm trying to make room for.

A local farmer here in town has a '46 that has a 4 speed in it. He bought the truck new. He traded in his '41 because he could get a 4 speed in the '46. He said that the 3 speed was difficult to move wagons on the farm.