And intrepidtan is there a way to fix the speedometer after doin the swap?
Get a compatable* TCM from a car with a 3.89 (typically 2.7L) gear ratio.
* I'm have my ideas about which would be compatable, but there are others here who know better than I. Hopefully they will jump in.
By the way what is the name of these 2 gears and part number?
04659232 Output Shaft (32 Teeth) for the 3.2/3.5L
04659831 Output Shaft (31 Teeth) for the 2.7L (and some other specific cars)
04659233 Transfer Shaft (33 Teeth) for the 3.2/3.5L
04659834 Transfer Shaft (34 Teeth) for the 2.7L (and some other specific cars)
[notice the last two digits of the part numbers match the tooth count]
04659190 Split 2-Piece, Type 42, Trans. Drive
[I don't remember these as two piece, but it's been a while since I looked at my set.]
(As mentioned by others, there is only one chain part number regardless of which gear set (32/33 or 31/34) you are using.)
I wouldn't buy new. Just get a gear set (with chain(s) and shims) from a junk yard.