I am wanting to install a Cummins 4bt in my 1975 FJ55 but am hesitant because I do not want to lift my vehicle more than 4" (I would prefer a 2 1/2" lift). I have read 4" possibly works with the engine swap but wanted to confirm it prior to making any purchases. Also I wanted to see if anyone has any input as to ride quality of a 4" lift kit on an FJ55. So far I am leaning towards purchasing an Alcan lift kit. Any input would be greatly appreciated.