You might look into balancing beads.
You buy these little beads that go inside the tire. The centrifugal force keeps them on the outside of the tire like my fat belly in the tilt a whirl at the carnival. But the centripetal force once you get up to 25-30 mph and above will make the beads “puddle” into the lightweight area of the tire.
In the old days we used to put water inside the huge tires like 44” tires on 15” rims which were biased ply so them suckers really could shake your teeth loose. But a quart of water made them run nice & smooth. And as the tread wears down the tires normally would need rebalancing every 10,000 miles or so- but the water is obviously self fixing.
This trick created havoc when going into the mountains and dealing with freezing temperatures so it was only used places like here. The 3 or 4 days that would get cold enough to make internal ice cubes - that would shake your truck apart! Haha.
We tried a lot of things- copper BBs worked well but made a serious racket at every stop sign.
We tried antifreeze instead of water but turns out that when you do that you doom that tire to never accepting a patch or plug properly again.
There are devices called Centrimatic and Balance Master. This is a ring that goes on the wheel studs before sliding on a tire. Works on same principle. Steel shot or something similar is inside the metal tube. As the centripetal force increases the steel shot goes to the lighter area and balances the ride.
Hummer/hmmwv stock tires are 37x12.50x 16.5 or 17 depending on year. Semi common is to bump up to 40” x 13.5 or 14” wide. So tire balance becomes a significant impact.
My Hummer like many still use the bead lock & runflat device inside the tire. So my wheel & tire combo weight is 165 lbs per wheel.
660 lbs of spinny parts over 3’ in diameter can really create havoc.
So it doesn’t take long before everyone on the hummer forum is learning of the magical devices called centrimatic or balance masters.
the difference is amazing, and you are purposely not supposed to add the lead weight because as tired wears that lead weight could go from helping to hurting.
I have a cousin who built his own wheels for his Jeep. 20” rims for big tires but he learned of these things and took his to a different level. He welded a 1/2” diameter tube around the inside of the rims down below where the bead seats are and made them work as a bead lock backer plate so when he tightens the outside ring up it smashes the tire bead against the inner tubing. The tube on each side has the steel shot in it.
In testing it he actually wire tied on a 1.5 lbs weight to the rim and test drove at 65mph. Barely felt anything. He did it with a 1 lbs weight and it couldn’t be felt at all.
Here is a pic of mine for my hummer next to my 165 lbs “12 bolt” two piece wheel. The tires are serviced like a quad tire- unbolt rim and take tire out of the middle. It’s made of aluminum - I am guessing on steel shot inside- never seen one opened up- just feels like it- more like steel sand actually.
