For sale is an excellent PEM #65036 Premium Light Weight quick change gear set #36 with 17 and 25 teeth.  This is set 36 and in a 4.11 ring and pinion rear end this yields a final ratio of 6.05 and in a 4.86 ring and pinion rear this yields a final ratio of 7.14.  This is an REM'd 10 spline gear set and very nice.  Thanks for looking and as always I combine shipping when possible.