Replacement capable Tcase for 1975 K10 passenger side drop

[ChevyJGP]

Hi all. I’m needing to rebuild or replace my current NP203 tcase on my 1975 k10. The 203 is passenger side drop. I’ve been looking for np241 unsuccessfully so far. What other cases can I mount to my t400 tranny with passenger side drop? Thanks

 

[Old Guy Bill]

NP208, but it won’t work with the 203 adapter.
A 205, if you can find one and afford it…
Do a Search, there’s a lot of info on these case swaps

 

[ChevyJGP]

Thanks Bill

 

[CalSgt]

205 = Tough, gear driven, pretty heavy, maybe synchronized maybe not

208 = Lighter chain driven, mechanical Speedometer drive, synchronized

241c = 208 with electronic speed sensor

203 = Boat anchor, chain driven, heaviest of the bunch

 

[Zelph]

^
205 = Tough, gear driven, pretty heavy, maybe synchronized maybe not

208 = Lighter chain driven, mechanical Speedometer drive, synchronized

241c = 208 with electronic speed sensor….except 1989 is a 1 year only with mechanical speedometer drive

203 = Boat anchor, chain driven, heaviest of the bunch

 

[Old Guy Bill]

I’d like to add that short tail shaft you currently have on your TH400 won’t work with any other TC, it is for the 203 only.