JD, Thanks for the info! I would love any documentation or info you can send me. Would an "all-year medium" be like a iso 46? My grandfather passed away in 85' and my truck was his. It is one of the last items that he had his hands on. At the time of his passing he was in the middle of upgrading/rebuilding several things on it. The biggest project was the replacement of the rear axle (1970s c60 two-speed), which he almost finished. Until very recently it was in another family member's hands (not good hands at that) and I just barely managed to save it from the scrap yard (by only a couple of hours). My love for ADs comes directly from the many many hours I spent as a young kid riding shotgun with him hauling equipment (loaders, graders, rollers) and gravel/stone. They were some of my most enjoyable childhood moments with him. Every time I start the old girl up I am right back there with him. I am always truly amazed how an old truck is so good at being a time machine. Thanks again....
Last edited by Grampsold54; 03/09/2011 4:24 PM.