This seems to show something different, the single front wheel is a 0.5 offset wheel 4" bakespace so it's not very close to the king pin center line.
Single wheel front hubSingle rear wheel front hub set out 1"
Dual front hubDual wheel front hub with the wheel mount outboard of the outer bearing.
Same axle, same spindles, same bearings, same center line. except the tread does not center on the kingpin on either.
The dual hub wheel mount is significantly out board of the single hub wheel mount and doesn't seem to have created a bearing load issue The front tread is almost 3/4" different on stock axles between dual and single rear wheel, and again all other parts are the same.
So i'm thinking that if it were a problem all 3800 and up dually trucks would already have the problem.
The 4x4 scenario is usually when the wheel offset is very exaggerated past what I show in the pictures.
We did a lot of research on the kit before we released it for sale, I checked the rumor for ball bearing failing when discs were added or radial added. Not one place could I find a first hand example. We checked if it would affect steering while braking, Turn radius, Ackerman, you name it. We have several hundred of these out now so someone would have said something if it had issues.
