hello guys here is my situation. i presently have a y1(sir jdm) lsd tranny in my ef. also i have a j1 (90-91 integra xsi) tranny as a spare , but it has a bad casing. i want a bit more gearing then my y1 tranny. i want to know if i can swap over the j1 gears into my y1 casing and keeping my lsd. also wanting to swap the j1 4.400 final into the y1 and ger rid of the 4.266 final. so bacially do jdm cable trannys both 90-91 do they share similar internals that can be swaped over?
thanks

 

anyone have an idea?