GM Muncie Input Shaft Nut M20 M21 M22 Chevy 4 speed GM591150 Made in USA

Muncie 4 Speed M20 M21 M22 Transmission New Input Shaft Nut OEM Quality - MADE IN USA This listing is for 1 Muncie front bearing nut. OEM quality material. Made in USA. I'm sure all the listings for nuts on Ebay will drive you "nuts" with pricing all over the map. Bottom line is that if you want a cheap component with poorly machined loose fitting threads to hold your front bearing in place then you are setting yourself up for a major failure for a few dollars. Spec'd dimensions by Paul Cangialosi author of the Muncie 4 speed book. Offshore nuts have may look the same but small dimensional differences will cause oil leaks. Aftermarket part number is PR707, PR707A. Original GM part number was 591150. Shipping anywhere in the continental USA standard mail for $FREE !