CORVETTE RACING

[Dairyland Trucker]

Not to step on any toes here but after owning a trucking company for over 20yrs and driving for over 20yrs I have been inspected by many Motor Carrier Enforcement officers and they have always measured the wheel base on my tractors by measuring from the center of the front hub to the center of the hub on the first rear axle, and same holds true when we were measured going into canada because there wheelbase law is 245" and they measured it the same way.

[Tamiya Cowboy]

Originally Posted by Dairyland Trucker

Not to step on any toes here but after owning a trucking company for over 20yrs and driving for over 20yrs I have been inspected by many Motor Carrier Enforcement officers and they have always measured the wheel base on my tractors by measuring from the center of the front hub to the center of the hub on the first rear axle, and same holds true when we were measured going into canada because there wheelbase law is 245" and they measured it the same way.

Thats the way truck lines do it around here that is coming from a board member that runs a very large fleet of trucks and also helps another company with there LTL and trucks.

[ihbuilder]

Of all the bloody years I've been (re)building and getting modified titles . On a tandem axle truck , WB is measured from the center of the front most axle to the center of the tandems . Thats what they want on the app. and that's how it was explained to us by the local manufactures that have helped us with the paper work . Canada my be different , IDK . Bridge law goes by a different measure .

[Semi Crazy]

I drove and owned big trucks for a good part of my life and have always used center of the front axle to the center of the first rear axle in reference to the wheel base. When buying the truck, when referring to the truck to buy parts and to pay fines for over length. That's the way it has always been.

[Stickman]

I think you measure front axle to center of front drive for axle spacing, and front axle to between tandems for wheelbase. I've seen this discusion go on in many other forums before, with no end in sight. I drive a Freightliner Cascadia daycab every day, and inside the glovebox it says it has a 184 wheelbase on the data sticker. I took a tape measure to it and it measured 184" from the center of the steer axle to the empty space right between the tandems.

[Lmackattack]

Originally Posted by Stickman

I think you measure front axle to center of front drive for axle spacing, and front axle to between tandems for wheelbase. I've seen this discusion go on in many other forums before, with no end in sight. I drive a Freightliner Cascadia daycab every day, and inside the glovebox it says it has a 184 wheelbase on the data sticker. I took a tape measure to it and it measured 184" from the center of the steer axle to the empty space right between the tandems.

Thats the correct way in the USA. Axel spacing and wheel base are 2 diffrent measurments. on a 3 axel tractor the Wheel base is measured from center of front axel to center of tandems. my build sheet from Mack in 1977 shows i have a 206" WB when I measured to center of tandems It indeed is 206".

front axel to first rear axel spacing has more to do with bridge weight laws.