Ok, I think I got it sorted out, maybe.
From all the little bits gathered here, and looking elsewhere, the G52 was an option in the US only for '84-'85. The G54 was available from '86-'88. The G synchros available before '86 share the same #s as those available after '85. So, it seems they...
I can't be sure if the 52 and the 54 stuff is interchangeable.
I can get part listings, but no diagrams.
The above #s were for a 1986 RN66L-MSEK SR5 Canadian unit
I've looked this up as a '87 LN56L MDK (Canadian unit, 2L diesel) and got:
1- 33368-20012
2- 33367-14010
3- 33367-14010
Which...
Came to the conclusion that the fourth gear (input shaft) synchronizer is not working. Marlin crawler will not sell me a new synchro, nor could provide the part number for it.
I am finding that I am having a hard time getting this through Toyota as this is a Marlin L50HD transmission (L50 with...