ConcoursMustang Forums
1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1967 Mustang => Topic started by: Ashley on March 28, 2024, 08:15:40 AM
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Purchased a Bendix PS control valve from seller on eBay with 5/16" pressure port, with a date code on cap 2K 25 A. Is this valve off a 1972 model year car? Also keep seeing a 6-19-67 date Ford made a change from 1/4" to 5/16" pressure hose on all Mustang cars. Is this correct and the Ford code for this change. Thanks
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Yes Ford did change from 1/4 to 5/16 control valves in 67. As for 6-19-67date, I do not think there was a hard date for the changeover in the three plants.
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The date code is stamped on the cap. Rebuilders mix the parts up so the date stamp becomes meaningless.
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Yes Ford did change from 1/4 to 5/16 control valves in 67. As for 6-19-67date, I do not think there was a hard date for the changeover in the three plants.
+1. I typically examine Shelby's and I have yet to identify a late production 67 Shelby built that had the larger fitting that hadn't been messed with. This leads me to the conclusion that it was not a hard date for change over but more for that was when Ford stopped getting inventory of the smaller style which allowed on hand stock to work its way through the system. Of course the same scenario goes for the accompanying lower pressure hose too.
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The date code is stamped on the cap. Rebuilders mix the parts up so the date stamp becomes meaningless.
+1 .Good point
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The important thing is that the hydraulic line style changed maybe around 1974. You can't easily use the later line style on the earlier cars and vice - versa. The cap can be swapped to fix the date issue. Often the attaching screws are changed to a later style allen cap screw head too. The screws on a 1960's era control valve would be a integral washer filister head with a straight slot screw drive.
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The date code is stamped on the cap. Rebuilders mix the parts up so the date stamp becomes meaningless.
Illustration to show details and the date stamp on the assembly line caps
(https://www.concoursmustang.com/forum/gallery/20/6-280324180944-2027884.jpeg)
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I suppose one without a date is better then one with the wrong date. The date is easy enough to stamp if it bothers you. https://www.npdlink.com/product/cap-kit-power-steering-valve-spool-centering-spring/149040?
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Top right picture in my post above is a NOS/service replacement
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Top right picture in my post above is a NOS/service replacement
That may be what NPD is selling.
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The important thing is that the hydraulic line style changed maybe around 1974. You can't easily use the later line style on the earlier cars and vice - versa. The cap can be swapped to fix the date issue. Often the attaching screws are changed to a later style allen cap screw head too. The screws on a 1960's era control valve would be a integral washer filister head with a straight slot screw drive.
Mid year 76 change-over (if memory serves).Granadas were still using the control valves trough 1980.
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Mid year 76 change-over (if memory serves).Granadas were still using the control valves trough 1980.
True and Mavericks, Mercury Comets, Lincoln Versailles, and Mercury Monarchs continued to use the Bendix style power steering system as well. It was introduced in the 1950's and continued to be used for many decades afterwards.