I need to know if there is any casting differences between an ITR transmission and a gsr or LS transmisison... something mroe than just looking in the diff to see if its lsd or looking at the sticker.... cuz an ls or gsr can have an lsd in it as well and stickers can be changed! help please!!!!

 

i know of no casting differences.. looking for the LSD is the only way to tell from the outside.

 

sometimes you can see LSD written on it

 

no difference. not if you are talking about the bare piece of metal. sure, they stamp different things on the outside regarding what is inside, but there is 1 b-series tranny case.