Does anyone know of rebuild information such as Motors Manual on the Sm420 that is available online or do I have to take a trip to the local library????? Specificaly what is the trick or procedur to instal the shifter top the easiest also the shifter cane into the top the easiest way??????

Thanks:beer: :zzz: :rasta:

http://members.cox.net/cglabe1/SM420/sm420.html

I rebuilt a SM420 for my Jeep, it's pretty easy, just take it apart and put it back together. And I never had rebuilt a tranny before. My syncros were broken but I managed to figure it out even though they were in the bottom of the case. It's pretty straight forward. Just get a rebuild kit and do it. Warning: get a good tranny, while mine has driven for 30K+ after rebuild, the main shaft [2piece] was worn [makes a wobbling sound when idling] as well as 3rd gear [pops out when under load going down hill]. The guy told me it was in good shape, but he lied. I rebuilt it, couldn't see any problems visually[inexperience?], then found out it should have been a boat anchor.