transmission id

i have these 2, i believe, 4 speed transmissions and i'm having a hell of a time identifying them. one is bolted to a 235 chevy. i took some shitty pictures, if anyone can tell what they are that would be badass.

 

Granny-four speed farmer's favorite!
No good for anything except a farm truck.

 

Yup, looks like Muncie SM420. Learn here:
http://www.novak-adapt.com/knowledge/sm420.htm

Bob

 

i thought it was a 420, but wasnt sure the case doesnt look the exact same. and if it is a 420 i have a perfect use fore it. i almost bought one 2 weeks ago to put into my jeep. 7.0 1st gear ratio = crawltastic. haha
so to get the gear ratios to be positive, i just spin the input and count the # of times the output spins correct?

 

SM 420 is '48 up ... these 2 are '38-'47 crash boxes - no synchros

 

that would make more sense thanks. are these transmissions crap?

 

Yeah, pretty much. If you lived in the snow belt, they'd be good winter traction weight in the back of your 2wd pickup.