Re: what is compatible
Run the shifter into each gear, turning the input shaft each time to make sure the output shaft actually spins.. and that it doesn't make a grinding noise while doing so..
Beyond that its kind of a crap shoot..
Could see if they forgot to change the fluid.. crack the drain and see if there are numerous metal shavings.. Chances are if the car is wrecked, the transmission is OK. If the car looks to be in OK shape then its either had trans or engine issues
2012 IS F Blue IS F Sport
2006 Mustang V6 wannabe