The Ford Barn

Randy1944 · 02-20-2024, 03:15 PM

I got great advice earlier and would like to get more opinions. I have bought the Van Pelt book on these transmissions. I have a stock 39 pickup with a top shift transmission that pops out of gear on occasion. I have bought what appears to be a late forties top shift transmission that is in pieces. The cluster gear has a broken tooth. I have decided to rebuild this transmission into a unit that I can use as a backup for my 39 pickup, that has a closed drive shaft. I have found that I need to find a Main Shaft Bearing Retainer #78-7085 B. Then I need to replace the Main Output Shaft #7061, to convert this transmission into one that will work on my closed drive shaft. Then I will need another Main Cluster Gear to replace damaged one. Am I better with used parts or new parts? I expect to buy new bearings and other worn items but am concerned with the meshing of new and old parts. Thanks for advice and especially help with sources for used parts if I go that way.

02-20-2024, 03:15 PM	#1
Randy1944 Senior Member Join Date: Jun 2010 Location: east Tennessee Posts: 363	Top shift transmission. I got great advice earlier and would like to get more opinions. I have bought the Van Pelt book on these transmissions. I have a stock 39 pickup with a top shift transmission that pops out of gear on occasion. I have bought what appears to be a late forties top shift transmission that is in pieces. The cluster gear has a broken tooth. I have decided to rebuild this transmission into a unit that I can use as a backup for my 39 pickup, that has a closed drive shaft. I have found that I need to find a Main Shaft Bearing Retainer #78-7085 B. Then I need to replace the Main Output Shaft #7061, to convert this transmission into one that will work on my closed drive shaft. Then I will need another Main Cluster Gear to replace damaged one. Am I better with used parts or new parts? I expect to buy new bearings and other worn items but am concerned with the meshing of new and old parts. Thanks for advice and especially help with sources for used parts if I go that way.