I was parting out a 88 BII today for parts to use on my 89, one thing I wanted was the manual tcase.. after removing it I noticed the aluminum front adapter on the Tcase that bolts to the trans was cracked in several spots.. I called a few drive line & parts places.. & no ones has it.. does anyone have an idea where I can find this part?
Tcase is a Borg Warner 1350 Manual..
Yeah, you can find 3 of them in my T-case spare parts bin.
They made 3 different front plates that will fit:
1- Early 13-50 - has 4 planet gears, tapped for standard bolts, and slightly weaker design (less meat around bolt holes).
2- late 13-50 - has 4 planet gears, tapped for metric bolts, and slightly stronger design. (also used on early 13-54s)
3- 13-54 - has 6 planet gears, metric bolts, same strength as #2.
(there may be more, the newest 1 I've had apart is a '99)
#1 +#2 will fit with no mods, other then using different bolts.
#3 will work with the right high/low range gear and shift fork.
The 4 planet gear isnt as strong as the 6 gear, but there are very few people who have broken the 4 gear setup.
Go with #2 for the easiest fix.
Oh yeah, it doesnt matter if its an electric shift or manual, either will fit.