Achto 27,577 #28 Posted December 1, 2021 A few more angles of these would help, but the other 2 look like 1960 Suburban models. Kohler K91 would be the correct engine for a model 400. Tecumseh H55B would be the correct engine for a 550. Share this post Link to post Share on other sites
wallfish 17,000 #29 Posted December 1, 2021 The steel pedals give it away as the rustier 2 being 1960 Models 400 and 550 are the same exact tractor base except for the different engines and the associated electric start parts for the 550 That front bumper on the middle one is cool ! Those foot rests are 1960 too and were an option Nice find! We've seen much worse than that come back to life on here. 1 Share this post Link to post Share on other sites
AMC RULES 37,130 #30 Posted December 1, 2021 That crusty one in the middle is the best of the three. 1 Share this post Link to post Share on other sites
