hm12460 53 #1 Posted February 10, 2011 Gentlemen, what is the oem tire size, front and rear, for a 1986 312-8 speed? Share this post Link to post Share on other sites
TT-(Moderator) 1,128 #2 Posted February 10, 2011 Front: 15 X 6.00-6 Rear: 22 X 9.00-12 Share this post Link to post Share on other sites
hm12460 53 #3 Posted February 11, 2011 Thank you Terry. Would a swap to 16/6.50/8 and 23/8.5/12 be a worth while upgrade? without interfering with the 42" side discharge mower deck? Share this post Link to post Share on other sites
B-8074 19 #4 Posted February 11, 2011 You cab do the swap but you will need to change the front spindles. Share this post Link to post Share on other sites
Kelly 1,028 #5 Posted February 11, 2011 Harold, when you make it over this way I have the parts you need to do the swap, just wait till the snow melts some. Share this post Link to post Share on other sites
TT-(Moderator) 1,128 #6 Posted February 11, 2011 You cab do the swap but you will need to change the front spindles. You don't need to change the spindles, but the shorter spindles used with the taller tires are stronger. I have converted to 8" rims with and without a spindle change and the only difference is that the front end of the tractor sits about an inch higher - and even that can vary with the brand/design of front tire used, and the actual height of the rear tires. Share this post Link to post Share on other sites
hm12460 53 #7 Posted February 11, 2011 Sounds good Terry. Kelly, i'm not sure all this snow is EVER gonna melt! Thanks to both of you for you advice. Share this post Link to post Share on other sites
