Article by scottericsonon of the XLForum ¹⁾

A used transmission bought from Ebay was disassembled and the parts swapped over to the original trapdoor.
The used transmission had all Andrews gears as well as the mainshaft and countershaft.
I put new main and countershaft bearings in my trapdoor so I could reuse it so I know everything will line up with my case.

Empty trapdoor.
I should note that while it was empty, I DID punch out the countershaft oiler plug so I can set endplay later.

Clutch gear with new bearing loaded into trap.

Mainshaft loaded in. You WILL have to pull it back apart again but I wanted to get the trans loaded just so I could see how everything fit together before I put the shift forks in.