4 bolt Rear Diff question

[DJ23GSX]

I know someone who has a complete 4 bolt rear end cheap but they don't know if its from an auto or a 5 speed or even what year car it came from. Are there any easy ways to tell by looking at it? What should i look for to make sure it will work in my 5 speed?

Thanks

 

[hewhoisknot]

there's letter in the rear diff... i believe it's like b13 or b15... i will look later today if u don't get ur answer here pm me

 

[DJ23GSX]

Yeah mine says b17 viscious lsd but the one i am interested in is different. But i was looking here and noticed there tag was different too (B1H)

http://www.prostreetonline.com/pso/pages/howto/4bolt.asp

did the auto's get the lsd in the rear?

 

[Mackzero]

B1H >>> 5-speed

B1J >>> Auto

 

[Cyclone_90]

B1H >>> 5-speed

B1J >>> Auto

Does it matter if its from an auto or 5sp???

 

[DJ23GSX]

Does it matter if its from an auto or 5sp???

I read that gear ratio is different between the two.

 

[DJ23GSX]

B1H >>> 5-speed

B1J >>> Auto

why is mine B17??