proportioning valve help
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Freshman User
Joined: Oct 2009
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proportioning valve help
In my stash of parts I found a brand new brass prop/differential pressure valve that I'd consider using in my 1978 F150 to 1965 F100 disc brake conversion. It fits the 78 prop valve bracket perfectly.. I think it's an early 80's valve but not sure from what year or model truck. Hopefully ND or others might track down the number E4TA-2B524 K2A which is stamped on the part although it was in a box marked E4TZ 2B257-C. It has an electrical connection which I guess is for the pressure failure light but it does not have a bleeder valve. Thanks for your help. Lefty
Lead Driver
Joined: Aug 2003
Posts: 6,305
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From: Boulder Creek, Ca
Not an authority, my understanding is the 73-79 prop valve will work as long as it's off a front disc brake set up, a front/rear disc brake prop valve will not work. Perhaps another member will be able to determine by P/N.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
In my stash of parts I found a brand new brass prop/differential pressure valve that I'd consider using in my 1978 F150 to 1965 F100 disc brake conversion. It fits the 78 prop valve bracket perfectly.
I think it's an early 80's valve but not sure from what year or model truck. Hopefully ND or others might track down the number E4TA-2B524 K2A which is stamped on the part although it was in a box marked E4TZ 2B257-C.
It has an electrical connection which I guess is for the pressure failure light (*) but it does not have a bleeder valve.
I think it's an early 80's valve but not sure from what year or model truck. Hopefully ND or others might track down the number E4TA-2B524 K2A which is stamped on the part although it was in a box marked E4TZ 2B257-C.
It has an electrical connection which I guess is for the pressure failure light (*) but it does not have a bleeder valve.
ID engineering number: E4TA-2B524-K2A = Ford part number: E4TZ2B257C .. Brake Differential Proportioning Valve.
Fits: 1984 E250 (over 8500 lbs GVW) / 1984/85 E350 / 1984 F250 w/a GWV between 6900 & 8500 lbs.
Fits: 1984 F350 2WD Crew Cab / 1984/89 F350 w/DRW.
* D5AZ2B264A .. Low Brake Fluid Warning Light Switch.
Fits: 1980/96 F100/350 F(Super Duty) & Bronco / 1980/2002 Econoline // All 1973/78 FoMoCo Passenger Cars / 1979 LTD II (not LTD) / Ranchero / Cougar / Lincoln Town Car & Mark V.
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2001, 73, 79, 85, brake, e4tz2b257c, f100, f250, f350, ford, location, portioning, proportion, proportioning, valve
