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Tractor Pulling Discussion Forum

What Tire Size is legal?????

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kyle

08-03-2004 06:52:42




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What is the biggest size tire i can put on my A john deere to pull antique class and still be legal with rules???




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2 Cylinder

08-03-2004 07:15:48




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 Re: What Tire Size is legal????? in reply to kyle, 08-03-2004 06:52:42  
The best advise I can give you is to check with the clubs and fairs you will be pulling at. The rules for tire size limit vary from club to club and fair to fair. It will also depend on what classes you'll be pulling and how much horsepower your A-JD is making. You won't want a big tire if you do not have the horsepower to turn them. I ran a 55hp 47 John Deere A with the fast 1st gear in 4500# thru 6000# classes and had 15.5 x 38's, and did quite well. Have Fun Pullin!!!

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Kyle

08-03-2004 13:54:07




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 Re: What Tire Size is legal????? in reply to 2 Cylinder, 08-03-2004 07:15:48  
I have a dead stock 1943 A john deere ive never pulled before do you have any suggestions?? one guy told me to get bigger rear tires lower the front end and mess with drawbar length is that all legal in a antique class???



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2 Cylinder

08-04-2004 06:47:39




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 Re: What Tire Size is legal????? in reply to Kyle , 08-03-2004 13:54:07  
Get a copy of the rules, and set up the hitch and weight as close to what the rules say as possible. There is a reason they set limits for weight and hitches, and the closer you get to these limits the better advantage you get. Usually as short and high a hitch as you can get the better. If you have access to a dyno, thats a plus as you can tune the tractors timing and carb. for peak horsepower. Tires I would not go any bigger than 15.5 x 38's if it is bone stock, cause all you'll do is power out, a 43-A has the high speed 1st gear and requires a little more power when pulling. The only thing I can say is set the tractor up as close to what the rules will allow, and go out and have some fun. And afterwards if you enjoy pulling, you may want to think about upgrading the power.

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