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Discussion Starter #1
In the trunk of my 65 fastback, on the front wall (behind the rear seats) is a valve (looks like a tire stem valve). This picture is not the best, but should at least show placement. Around the valve it reads "150psi max, 25psi min." What's this for?


http://i28.photobucket.com/albums/c213/croberts02/P1010055.jpg
 

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Sounds like an air shock valve to me.

Joe
 

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Discussion Starter #3
Is this a standard feature, or something a PO added at some point? Would it make sense for there to be just one?
 

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aftermarket

air shocks, yes just one valve.
 

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Hi Chris
Just checked in my trunk and I don't have anything like that. Sounds like an aftermarket airshocks something (I didn't want to say something too technical! LOL)
Stan
 

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Someone has added it, airshocks have been used as a quick fix to raise the rear ride height. They put undue stress on the upper shock mounts and can actually rip the floor around the mounts.

Joe
 

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Discussion Starter #7
They put undue stress on the upper shock mounts and can actually rip the floor around the mounts.
So that (in addition to the rust) might explain this:

http://i28.photobucket.com/albums/c213/croberts02/P1010057.jpg
http://i28.photobucket.com/albums/c213/croberts02/P1010056.jpg
 

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Discussion Starter #8
I didn't want to say something too technical!
Thanks for keeping it in "novice-speak" for me ::
 

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No, that's strictly rust there. The shocks are right behind the rear seat.

Joe
 

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Someone..somewhere along the line installed air shocks thats the valve to inflate them
 

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They put undue stress on the upper shock mounts and can actually rip the floor around the mounts.
So that (in addition to the rust) might explain this:

http://i28.photobucket.com/albums/c213/croberts02/P1010057.jpg
http://i28.photobucket.com/albums/c213/croberts02/P1010056.jpg
That's the rear spring hangers rotted out , inside the frame rail . Looks like you will need both rear frame sections .
 

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Discussion Starter #12
airshocks have been used as a quick fix to raise the rear ride height.
Did they go this route as opposed to replacing the leaf springs? Would that have been the correct fix for the problem?
 

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Discussion Starter #13
Looks like you will need both rear frame sections .
That's what I figured :(
Just keeping the trunk closed and ignoring it won't fix it I guess :p
 

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Either your rear springs are worn out, and most are, or they were sometimes used to raise the rear to clear oversize tires.

Joe
 

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Yeah..those rear frame rails are pretty ugly. Quite a project for your first Mustang. Are you good with a welder?
 

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Discussion Starter #17
Are you good with a welder?
Never touched a welder before in my life. I'm either going to take a few (or more) classes, or bite the bullet and have it professionally done.
 

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Discussion Starter #19
YOU CAN DO IT!!!
That's what I keep hearing :)

It may just come down to how impatient I get....
 

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airshocks have been used as a quick fix to raise the rear ride height.
Did they go this route as opposed to replacing the leaf springs? Would that have been the correct fix for the problem?
Air Shock were standard issue on most street cars in the late 70s/early 80s. We considered this a significant advancement over long shackles. Their worst feature at the time was when THE MAN would pull us over and make us let the air out... If the fenders came down and made any contact with the tires you were looking at a ticket. In retrospect air shocks were not a particularly intelligent mod. The point of all this is that although your car had air shocks at one time, don't assume the PO was masking a structural problem. At the time he was likely just trying to "jack up" the rear. Of course this is all moot as you certainly (now) have one or two structural issues.

- Gord
 
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