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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Proportioning Valve Placement

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Old Nov 18, 2003 | 07:08 PM
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Proportioning Valve Placement

I have an 1991 F 150 4x4, and blew out two 8.8 rear ends, so I decided to throw a 10.25 full floater in it to avoid blow-out of the spider gears. But I have too much fluid going to the larger drums in the back resulting in lock-up. I am wondering where to place the proportioning valve. I have a willwood fully adjustable valve and need to know if I have to put it before or after the brake block proportioner, or if it even matters at all. Any help would be much appretiated. I am running 35 in tires with 4:10 gears, I don't know if that matters. Thank you.
 
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