Originally Posted by
roger999
so... 72t + 32, 33, 34, 35 and 36 will fit without any problems?
Yes, I currently have the Associated Spur 69T (48P) in the car and I can put a 37T (48P) on. My problem is do not have anything larger to try. You will have to use the bottom motor mount hole not the back one, you will not be able to get the 2mm wrench in or the screw in the back hole. Also you will need to put the pinion on like you did with the TC5, because it will not fit though the opening between the motor mount and top deck.... You should be able to fit the following range of pinions on a 72T (48P), 30T to 43T giving a range of FDR from 4.8 to 3.35.