Denny, I used a rebuild kit and everybody knows you always replace the clutch and t/o brg any time you have it apart, or atleast thats what my brother in law told me after I had it all back together. Of corse I did not and now I am just waiting for the clutch to act up. Dumb mistake on my part, not the first and probably not the last no doubt. Good thing I can see some humor in it or I would be in trouble, cause I seem to do that kind of thing more than I should. My truck had a brownie behind the sm420 and the brownie had busted parts and lots of damaged parts. As bad as it was in side I thought I had better have a look in the forward transmission to while I was at it. The 420 was in much better shape, no busted teeth or any pieces of parts down in the bottom or nothing. Everything looked pretty good in there, just replaced the bearings and one or two bushings and all new seals, Novaks had any parts I needed. Seems to shift fine and is alot less noices going on, I can actually hear my radio now :-)I use my truck weekly around town and its the newest vehicle I own, besides my 05 Harley - thats my daily transportation. I am always wondering if something is going to go boom, but so far its working fine.