F450 Balance Master vs Centramatic
C-1911-FAS
I also would like to make my tires last longer and plan to do one of these when my trucks arrives.
@fleming23 - could you bolt the centramatic/balance master to your wheel and then mount on the balancing machine using the centering cone?
Thanks everyone! Roger
Ford Trucks for Ford Truck Enthusiasts
Spin balancing truck tires in typical automotive tire shops can be an exercise of going through the motions without actually balancing the tire and wheel assembly of Ford's 19.5" wheel, which has a much larger pilot hole than an automotive wheel, is much heavier than an automotive tire/wheel, and has a center of gravity that is much further away from the mounting face of the wheel disc, due to being a DRW.
In the late 90's, I set about to verify that tire shops were not really "balancing" tires and wheels by taking Ford motorhome dually tire and wheels to several tire shops, both corporate owned as well as independently operated, and paying them whatever they wanted to charge to "balance" the tire and wheel. I specifically sought out shops that had the very best equipment at the time, by contacting the equipment manufacturers, and asking them which shops had their balancing equipment. (ie Hunter, Coats, etc).
After the tire shop balance the tire and wheel assembly to 0.00/0.00, dead perfect, as I was standing right there next to the tire tech, I waited until the tire tech removed the tire and wheel assembly from the machine, and had it on the floor... then I popped the question.
Me: "I'll pay you extra if you can please rebalance that tire and wheel that you just took off."
Them: "Why? I just balanced it perfect. You saw it yourself. It's already balanced."
Me: (sheepishly) "I know, I know, you did great job too. Call me a weirdo or superstitious, but I wonder if it will still be balanced if you check it again, please? I'll be more than happy to pay twice."
Them: "You don't need to pay. It's balanced. I'll prove it to you. Watch this..."
And with that, the exact same tire and wheel that was just balanced a few moments before was remounted back on to the machine, and much to the astonishment of the tire tech, it was out of balance.
Same tire, same wheel, same technician, same machine, same shop, same day, same hour, same minute, same humidity, same temperature... but out of balance.
What the tire tech had balanced before was a rotating assembly that included the variance of how the centering cone of the tire machine was tightened to the wheel.
Therefore, Ford's TSB, and Haweka's flange adapter kit, was intended to reduce the variance of how larger truck tire and wheel assemblies are chucked up to balancing machines.
As for using stud holes to "center" a hub piloted wheel to a hub, you are not wrong to question the wisdom of that effort, especially with aftermarket wheels made overseas that are sold on based on the appearance of their design, not the control of their quality.
Since the wheels are hub piloted, rather than stud piloted, there is a specification for the hub hole, but what is the specification for the stud hole?
Furthermore, many aftermarket wheels come from China with no stud holes drilled, and aftermarket importers with American sounding names drill holes in these blanks to order. What are their tolerances for the stud holes?
I used the Haweka setup when i installed the 35" duratracs on the stock aluminum wheels and the nokian LT3's on the steelies.
The nokians were and easy balance, but the 35's definitely fought me a little. I got it done, but may put centramatics in to smooth out some random vibes.
being the setup for the f250 was different then other, smaller vehicles, I snapped a few pics of it to make it easier when i do tires again
Country of origin isn't as significant as chain of quality control.
A large multinational customer, like Ford, is more likely able to command a higher quality and consistency in output from foreign suppliers of high volume production parts... than a small importer of aftermarket wheels.
Consistency and concentricity of the stud holes is an obvious requirement if using stud holes to "pilot" a wheel designed to by piloted by the hub. Otherwise, the entire point of the industry moving away from lug centric and adopting hub centric wheel mounting methods to minimize installed radial runout... would be lost.
The wheel centering solutions by Haweka for mounting dual rear wheel medium duty truck tires on spin balancing machines utilize the hub pilot.
By way of illustration, and for the benefit of the member here who has what he described as a "cheapo alignment machine" (and I have to assume he meant the spin balancing machine shown in his photo), here is an example of Haweka tooling kits (updated since the Ford TSB).
Haweka HW280 400 139 Pro Max MD kit for Medium Duty Vehicles includes: the HW700 400 033 MD Flange Plate Adapter (configured in the 10x225 stud arrangement) AND the HW160 400 048 Hub Pilot Disc #2, for 170.1 mm Hub Bores.















