have my 85 pickup with EFI. I believe W56 tranny. 1-5 is fine but reverse is unable to be found. you can put it into reverse and it just grinds and kicks out... can't hold the gear in at all. Is this a hard rebuild or should I get a replacement tranny? any help would be appreciated!

 

the reverse gear i believe would be the easiest to replace. its on the back portion of the transmision housings ( belhousing/housing/center section/back housing/tcase) and is only a few gears to work with. to fully rebuilt the transmission youll need pullers, a press, snap ring pliers and a good set of sockets/misc and a magnet would be great. be sure not to lose the srpings and balls and youll be fine. how i did mine was take it a apart slowly, take tons of pics and label everything in order. i even added numbers so i could not lose track and go in reverse order apon reasembly.

Its a great learning experience and its really not that hard to do at all

 

thanks a lot for the info. i think i might try to do this one myself :-)

 

If your clutch isn't completely disengaging it could cause this problem.

 

Yea, my friends clutch SC was on the way out and his did that. I still think it sounds like a rebuild coming up.

 

before shifting in reverse...go to 3rd gear and then to 4th and then reverse...try that!