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**uncle** · 05-20-2007, 09:11 PM

Check the routing of your 2 lines going from m/c to prop.valve. They usually run different on a 1/2 ton vs. a 3/4 ton. I think you have them routed like a 3/4 ton.

05-20-2007, 09:11 PM	#17
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,283	Re: Brake Proportioning Valve problems. Check the routing of your 2 lines going from m/c to prop.valve. They usually run different on a 1/2 ton vs. a 3/4 ton. I think you have them routed like a 3/4 ton.