Originally posted by Jacob Marshall:
My 4 speed selective syncromesh trany on my 1959 3800 Chevy Apache
Welcome to the Stovebolt!
I don't recognize your description of the transmission, but assume its the same SM420 4-speed commonly found in Chevy/GMC trucks up through 1967.
If that's the case you should be able to buy another one for far less than rebuilding your existing one. They are pretty durable and lots of buys take them out to replace with automatics, so it shouldn't be too hard to find a good one.
