Quote:
Originally Posted by Captainfab
Very nice truck Les 
I see that 'Dry Road/Slippery Road' switch under the radio. Normally that is for the power divider with dual drives. I'm curious what that functions as on your truck. |
The switch is a front brake limiting valve. It reduces air pressure applied to front brakes when on the "slippery postion". I bet this truck was a short wheel base 2 axle tractor in its earlier life. It was very common for large trucks to be modified when sold to fit the need of the new owner. A power divider differential lock will say "lock" "unlock".