I have a M21 Muncie 4 speed transmission p/n 3925660 68-70 Corvette, that has been bagged in my storage shed. The ratios are 1st, 2.20, 2nd, 1.64, 3rd 1.28, 4th 1-1. I had it looked at by a well respected transmission man, who said it is perfectly fine inside. The transmission has the reverse shifting selector removed per a SCTA tech inspector. I have not run this transmission since it was looked at. $850 obo. Prefer no shipping. I can deliver to the El Mirage May meet if necessary. I can send pictures if you provide an e-mail address. Cash, or Pay Pal accepted. Thanks