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Would anyone know where to find a Brake Pressure Differential Valve (proportioning valve) for a 1967 Ford F100 Ranger 1/2 ton pickup? Its a 352 engine, with drum brakes all wheels. We have driven it since 1968 and would hate to give up on it now.
Last edited by Lone Ranger & Silver; May 31, 2013 at 10:41 PM.
Reason: need new title
To Hio Silver.... No, it is not a restoration. It has been our transportation since 1968. We are the 2nd owner. It pulls left on a soft brake, goes straight on a hard brake. Our mechanic says it is the proportioning valve. Hope he is correct.
To NumberDummy
You're right about the warning light, but on our truck that light has been out for a long time. I crawled under the truck and looked at that valve and the light connection has been broken for quite a while, it looks like. Our differential valve (proportional valve) looks like it has two lines coming down from the master cylinder, two lines going to the back and only one line going to the front out of the top.
How about a plain old 1967 F100 352 that is not a 4x4
To NumberDummy
You're right about the warning light, but on our truck that light has been out for a long time. I crawled under the truck and looked at that valve and the light connection has been broken for quite a while, it looks like. Our differential valve (proportional valve) looks like it has two lines coming down from the master cylinder, two lines going to the back and only one line going to the front out of the top.
How about a plain old 1967 F100 352 that is not a 4x4
That's what I gave you the C7TZ-2B257-E valve part number for, a 1967 F100/250 2WD & F350.
Look at the parts catalog applications for the other 1967 valves.
Hmm I'd almost bet it's not the P-valve causing the pulling but maybe a gummed up wheel cyl piston..on the other side then it pulls too.. my 2cents orich
4 wheel drum brakes do not have a proportioning valve. They have a distribution block. Two different animals. The distribution block is located inside the left frame rail in the vicinity of the master cylinder. Just follow the brake lines from the MC and they'll lead you right to it.
4 wheel drum brakes do not have a proportioning valve. They have a distribution block. Two different animals. The distribution block is located inside the left frame rail in the vicinity of the master cylinder. Just follow the brake lines from the MC and they'll lead you right to it.
"Brake Pressure Differential Valve" is the correct name as noted in the Ford Truck Parts Catalog. See post 4, basic part number 2B257.
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