I'm thinkin' of entering my H in the county fair parade. I was wanting to show off a bit and run duals on the rear. Here's the question. Someone on another website mentioned that running duals in road gear is a bad idea. I ain't got a trailer, but I can run backroads to the fair easy enough. Just wondering why road gear would be a problem? Is it bad for the tractor or just bad for the operator?
 
Only problem I"ve ever had driving dualed tractors at road gear speeds is when a rock jammed between the tires is launched through the air! That could KILL someone!
 
No harm in running duals on pavement in road gear on an H. Dad made a set of clamp-on duals for my Stg II Super H to plant corn with and I ran it to town a couple times with the duals on to get hog feed. The added width of the duals just made doing chores a bit harder. Used to run the half mile between farms in road gear with duals on all the tractors too. We ran the duals for the last four years Dad farmed with no problems. Just had to check the turnbuckles every morning to make sure they were tight.

I'd run 4-5 PSI less air pressure in the dual tires than you have in the main rear tires. Keeps stress on the wheels & axles lower.
 
Why didn't you ask the person on the other website who told you it was a bad idea WHY?

When someone tells you something is a bad idea, but can't explain why, then it's probably a load of BS.
 
I've run literally hundreds of miles in road gear on a Super M with duals, both light and pulling implements. Never had a problem.

Just check for rocks caught between the tires before setting out as Bob recommends. And pay attention for roadside mailboxes, etc. (with duals they will be "closer than they appear"!)
 
The bad ideal they might have talking about if you are running fluid in them. That would be hard on the rear end on a FARMALL H or M in 5th gear. Other than that nothing to worry about except as others has said mailboxes and oncoming traffic.
 
I can remember we always ran the older tires with less tread on the outer duals, I can't remember the exact reasons why, but it had something to do with torque build up on tight turns.
 
We run duals on tractor for planting and tillage all the time in road gear. It is a good practice to put the best tires on the inside to minimize stress on the axles.
 

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