Wishin4a416 2,189 #1 Posted February 9, 2013 I see threads with the number of the tranny along with it. Starts with a 50 if I remember right. Anyway I was wondering which one or ones I have. I have a 77 C-160-8 87 312-8 88 416-8 with the Hi-Low range ofcourse and 1 1/8'' axles. The Pat.# tags on the 312 and the 416 say 2988185. No tag on the 160. Or is there no way to tell without looking inside? Just wondering. Share this post Link to post Share on other sites
TT-(Moderator) 1,129 #2 Posted February 9, 2013 The patent number has stayed the same since it was filed in 1958. If you enter the model number of your tractor(s) at https://www.shoptoro...ngsLookupSearch and select the "Product Details" tab, the info will be listed there. Share this post Link to post Share on other sites
Wishin4a416 2,189 #3 Posted February 9, 2013 Thanks Terry! 1 Share this post Link to post Share on other sites