For sale is a very good Winters #8510A quick change gear set with 22 and 30 teeth.  This is set 10A and in a 4.11 ring and pinion rear end this yields a final ratio of 5.62 and in a 4.86 ring and pinion rear this yields a final ratio of 6.62.  This is a 10 spline gear and very good condition.  Thanks for looking and as always I combine shipping when possible.