Thanks for posting those Larry !!!, really enjoy seeing these all over the U.S. knowing where they were made here in Troy, N.Y. Often times they are found just like yours, with all the extras like you have, very fair price for one. I see them range from $150 & up locally, most are over $300. I would guess your's a '78, the early models that were just like these with the clinton engines or just after those, had yellow stickers, I have seen a few locally in nice shape, really cool to find those even earlier ones, I will admit to saving the photos on my hard drive LOL ! Then I think the one like mine is next without the green paragraph and signature under the forward reverse sticker, like yours and it says "Horse" on the sticker with the "Tiller Man" I think it is a later version than mine. None of that really matters of course, I just enjoy these to no end regardless, but its bugged me as there is a group of these that I cannot pin down the year they were made, ones like yours with those stickers, then ones like mine, same 161T Kohler, and exactly the same build. Mine was well kept too, never been left outside overnight, kept in a heated garage, very thankful to have gotten it too, I had missed out on deals over years, finally was in the right place at the right time.
Napa has the Sta-Lube brand Hypoid 140W A.P.I. rated (GL-4) lube safe for the bronze worm gear in the transmission on these. Its like $38.00/gallon, and it will take just under a gallon too, if you ever decide to change it, I did mine this spring, as it had the factory oil in it, was finally due, and the axle seals were seeping, so I did those too, and you can get those from, MTD, off ebay etc. They were easy to replace, the books will cover it, and give tips on doing so. My tine seals are dry but there was a slight oil residue, I found a loose bolt under there, near it, might be a common thing to check. Thanks for posting about yours, I still think these are one of the best tools a gardener can own, high quality, very durable, easy to maintain, and good parts support after all these years. PS I may save a few photos of yours to add with my collection with a side note "another proud troy bilt owner" LOL !!!!
Here is mine, the day I got it, (by the old garage doors) and one in my lower garden doing its thing last year. I actually found a darned wire link chain and buggered up the tine cover, but found the same one off ebay in about the same shape, so all is well, only I would know its different, and I will repair the original someday, was only the flapper, this year I found a horseshoe in the expanded area of the garden I plowed that was part of one of our fields, thankfully I did not hit that with the tiller !!! would have been 2 for 2 !
PS, I have even routed out 2 original gardenway carts locally, they are a very handy item for just about anything around the home, farm or garden.