There are three tail housing lengths.
14", 15 1/2" and 17".
All the cases are the same length 10".
So you can find a 24", 25 1/2" and 27" trans.
You can find all three lengths on 3 and 4 speeds.
Just depends on the car it was originally installed in.
Then you got shifter location.

Another thing to keep in mind.
A Jerico long tail is 24 1/2".
