Don, Yes I have a fair amount of weight on the front axle, about 11,500 pounds with 200 gallons of fuel. I'm told (any other opinions would be welcome) that it's ok to load the front suspension to close to rated capacity to improve ride quality.
Naturally, the weight distribution (front/rear) is based somewhat on the chassis wheelbase. Mine is 295 inches.
My NRC has the Freightliner Airliner front and rear suspension with 12K front and 32K rear rating. Each of the rear tandem axles is rated at 20K, however when in tandem they rate the total at 32K.
Based on the Michelin web site, I keep the front tires at about 95 psi and the rears at 80 psi. When I reduced the tire pressure to correspond to my actual weights, the ride improved.
I'd be interested in knowing how much weight other conversions have on the front axle.
Paul
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