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Old 04-04-2012, 10:36 AM   #1
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Question 1984 F150 Clutch Master Cylinder Pulling away from Fire Wall

The clutch in my 1984 F150 wouldn't disengage. Checked fluid in master cylinder (full). Found that where the master cylinder is attached to the firewall, the firewall is split, and master cylinder pulls out of place whenever clutch is pushed.
Does anyone know the name of the firewall spot where the clutch master cylinder is attached to?
Cant look the part up if the only description is 'where the clutch master cylinder attaches to the fire wall'.
O'Reilly's doesnt even know the name of it.
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Old 04-04-2012, 02:06 PM   #2
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Believe it or not, that's a fairly common problem with 80-86 model trucks. So common that Ford even sold re-enforcement plates. If yours is bad enough that the clutch wont work you'll need the large one, about $100.
Here's a place that sells them.
http://www.terrapinmfg.com/product.php?cat=Ford
And here's a writeup on installing them.
http://www.ford-trucks.com/forums/10...l#post11358654
It's a lot of work but the best way to fix it.
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Old 04-04-2012, 09:50 PM   #3
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That's a common problem for the newer trucks too. It was a recall item, the plates were used to fix it. You can see if they will still perform the recall. My uncle used self tappers to screw the plate to the firewall, but when I got the truck that wore out too so I welded the plate to the firewall.
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Old 04-05-2012, 03:20 AM   #4
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I don't think they ever issued a recall on the 80's trucks. They just supplied the parts so the owner could do it on there own dime. In fact, you can still get the small plate from Ford but not sure about the large plate.
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Old 04-05-2012, 09:17 AM   #5
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Cool Thank you for your replies.

Wow! So my 1984 F150 has done well for it's age. If I can't get the large replacement plate I might have one made that can be welded in place. Can't beat those old trucks!
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Old 04-05-2012, 04:58 PM   #6
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Originally Posted by dawikidwich View Post
Wow! So my 1984 F150 has done well for it's age. If I can't get the large replacement plate I might have one made that can be welded in place. Can't beat those old trucks!
You can get the large plate, just don't think Ford sells them anymore. Check the first link I posted, he still makes them for around $100. They're a pain to put in but really the best way to fix the problem right.
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Old 04-05-2012, 05:01 PM   #7
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Just weld the existing plate to the firewall.
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Old 04-05-2012, 05:01 PM
 
 
 
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