I dont think LSD is an option, but which B16a cable tranny should I get when I pick up my motor?

 

J1 or a S1 will do just fine

 

You should try to find a usdm 92-93 gsr tranny. Parts are easier to get to fix it when you wipe out your syncros. Forget about gas mileage with any b16 tranny though(the gsr also). Unless you do a fith gear swap.

 

I have a Y1 tranny with my b16a.....And was thinking about doing a 5th Gear swap....which tranny should I get my 5th gear from?

 

I believe most people do a ls 5th gear.