What trans is this???
 

Hey all,
I'm new to the boards here and am having some trouble identifying a transmission I just picked up from the graveyard.

I just bought an '85 Pickup Ex Cab 2wd with a 22r and blew the counter shaft gears within 3 days. I have confirmed that the trans I pulled out of my truck is a W50 (left), definitely not the original trans but that's not the issue.
The trans I got from the yard (right) came out of a '86 ex cab 2wd with a 22r and I can't identify it. I can't locate any casting marks at all. It looks to be a W56 but all the pictures I find are for 4x4 units which have different tail shafts.
Any help anyone can provide will be greatly appreciated.

Marlin Crawlers website has picture of several different transmissions that may help.

Looks like a W55 to me.

https://www.marlincrawler.com/transm...mplete/w55-2wd