Rob,
I'm going to have to disagree with you. I'd take a Dodge over a Ford Truck any day. Working for an automotive supplier, I've had the opportunity to test both vehicles and interface with both Ford and Chrysler chassis engineers. Quite frankly, I'm more impressed with the talent and...
Ian--Proportioning doesn't really attempt to track the front pressure. The purpose of any proportioning system is to achieve optimum brake balance. Optimum balance or 100% braking efficiency would be when all four wheels skid at he same time. Brake proportioning is necessary because the rear...
A fixed proportioning valve merely reduces the pressure out of the valve relative to the pressure into the valve by way of a piston/spring/seal arrangement. Proportioning by way of a vehicles ABS system essentially does the same thing by restricting pressure to the wheel by way of an isolation...
You may want to check out a central lubrication system available from manufacturers such as Vogel(a division of SKF). I have experience with operating vehicles in harsh underground mining environments where wheel bearings are frequently replaced. The Vogel system has been demonstrated to...
