FCrx7

hey i got a question about T2 trannies. i need to buy a new transmission cuz mines going out from the last owner not taking very good care of it. I was looking a a jspec tranny i can get it for 300 but they said they need to know the switch locations and overall length or something. I dont know crap about transmissions other than how to use em so if someone could help me out i would really appreciate it. Also would an 87 T2 tranny fit in a 89 T2. Thanks all.

John