Hi! this is a big NO NO, never misc match gears, first gears set are machined with the same cutter for proper gear meshing, second different size cutter are used for deferent gear teeth number. They have ranges like one cutter size cut gear between 26 to 34 teeth and the next size cut 35-54 teeth. Finally the diameter of the pinion and thickness of the ring gear changes on different gear rear ratio that might cause a problem too.
66 coupe restomod, 351w, T5z, mustang II front end, 9 inch 3.89 gears, four link rear end and 4 disc brakes
Last edited by zr2_wolverine; 02-02-2010 at 07:28 AM.