I have an 04 Sahara 4.0 manual transmission. Driving on the highway in 5th gear I always wish I had one extra gear to lower the rpms and have a smoother ride. Just recently looking at a salvage yard they have a 6sp manual tranny for a 4.0. This tranny came off of a 05 I believe. It's stated on their website that this tranny is for an 05-06 model tj.
What is the difference between my 04 drivetrain and the 05-06 that will not allow this tranny swap?