I just got a Oliver model 38 Drill. This has the 6.5 X 36 rubber tires which are pretty tall. I"ve only seen a very few Oliver drills of this type but I was wondering if this tire is available anywhere? I went through a few tire sites but they don"t go into Ag tires that in depth. Anyone had any luck with Ag tire websites? I"ll post some pictures of it soon. It"s about 12 foot wide and 20 discs. It"s been used every season by one family since the late 40s or early 50s. I just picked it up at the estate sale and most everyone around had seen it in the field every season. I think it"s got every bit of oil and grease on the gear boxes that was ever put in the gear boxes. It"s about a full inch deep all over the gear boxes. Everything works good though. I am also looking for markers for it. Not too many drills had markers but this did at one time since I have the mounts still on the Drill for it. If anyone can shed some light on this machine in any fashion I would appreciate it.