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It worked! This is the differential gear for the 36 Rumely. This machine was scraped during WW II . The scrappers left a lot of it there . The 4 wheels and the extension rims all became flower boxes. The differential shaft had its gear sledgehammered off leaving the hub between the platters. The old hub with two spider gear pins is on the bucket in the photo. So where do I find a huge gear like this ? All of the above was on a farm at Gleichen in southern Alberta. One of the 4 mill sites was on the north side of Prince George BC about 800 miles away.The late Tom McLennan helped drive the 36 Rumely the 15 miles to the mill in 1942 where it ran until the late 40s When a diesel engine was installed the Rumely was scrapped on the spot. There was no value to scrap in that back country so the pieces were pushed over the side with the sawdust. Tom helped in the scrapping so knew where the parts were . When he and the late Harry Burt were putting together the 36 which is now at Beaverlodge Alberta They couldn't find a differential for it at the three other mill sites. in1978 Tom wanted to dig for the one he buried in 1949 at the PG site but the new owner of the property wouldn't hear of it. In 1993 when I was gathering 36 parts a new owner had bought the property. When Harry and I went to visit him he welcomed an opportunity to get the bush cleared and see what was buried there So we loaded our excavator on our lowbed for the 500 mile trip. The first piece dug up was a rear wheel which is today on Gerred Ruble's restored 36 Rumely. In fact I supplied him with all 4 wheels last year. About 12 feet down up came the differential gear complete with spiders all to fit nicely onto the Gleichen diff shaft. I laid about 40 pounds of 7014 rod onto the bull pinions to bring them back to spec. These are big pieces 12 inches in dia. with 8 inch teeth weighing 120 pounds each. The diff gear is 6 inches wide and 54inches in diameter. CheersHi Beth, Being an old fart and computer illiterate this is my first go at posting A photo.If it works Ill explain it.