Vinny 0 #1 Posted February 16, 2021 So recently I’ve been having a problem with my 80s model 312-8 story on it is that I got it from my uncle who passed away and it wasn’t running I got it running but not driving because it had the automatic transmission that no longer worked so a buddy and I swapped it out for a 312-8 transmission now he ended up putting a broken dog screw in for the donut and it snapped and the donut fell into the transmission I tore everything apart got the transmission off took all the bults out but I can’t seem to get the trans to break apart can someone help me I need the tractor for thus summer for clean up jobs Share this post Link to post Share on other sites
oliver2-44 9,853 #2 Posted February 16, 2021 Do you have the hitch pin out at the rear of the transmission? I take a thin putty knife or a wood chisel and start at a corner an tap it in and work my way around to break the gasket loose. Share this post Link to post Share on other sites
Vinny 0 #3 Posted February 16, 2021 I’ll give that a try now when I break this apart the gears Arnt just going to fall apart on me are they because I’ve never worked on a transmission for a tractor before Share this post Link to post Share on other sites
953 nut 55,769 #4 Posted February 16, 2021 This thread by @stevasaurus should get you started on a successful rebuild. You can find a new gasket and any other parts you'll need at Wheel Horse Parts and More. https://wheelhorsepartsandmore.com/ 1 1 Share this post Link to post Share on other sites
Pullstart 63,096 #5 Posted February 16, 2021 Try checking out @stevasaurus’ video tutorials, he explains everything very well! Share this post Link to post Share on other sites
Pullstart 63,096 #6 Posted February 16, 2021 @953 nut beat me by seconds 4 Share this post Link to post Share on other sites
Achto 27,751 #7 Posted February 16, 2021 8 hours ago, Vinny said: now when I break this apart the gears Arnt just going to fall apart on me are they because I’ve never worked on a transmission for a tractor before If you can tip the tranny so that the right hand side is down, you should not have an issue with the gears falling out. 1 Share this post Link to post Share on other sites
roadapples 6,983 #8 Posted February 16, 2021 brake side up... 1 Share this post Link to post Share on other sites
horseyheaven 112 #9 Posted February 16, 2021 I always do them right side down. If you leave right rear tire on, it makes a nice stand. 1 Share this post Link to post Share on other sites
