Posted by Kaegi [24.16.253.154] on Monday, January 14, 2013 at 13:04:23 :
In Reply to: Thanks, Another question posted by Leon in PA [98.21.61.220] on Sunday, January 13, 2013 at 15:58:18 :
I dont know if the bore size is different and dont have a book to look it up but I think they are the same if by WM300 you mean 46 to 50 PW. the 51 to 66 has a different casting than the early trucks. then in 67 they went to dual resevoir