jeepsr4ever
We are starting to do this to get .006-.007 gear to end of timing cover tolerance. This type of machining gives you a .0005-.001 end play maximizing oil pressure on a new cover. It can also be done to old covers as a budget repair.
[img]http://i2.photobucket.com/albums/y29/bulltear/tcoverremach2_zps316508af.jpg[/img]
