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79 concord factory v8 rear spring issue

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mixed up View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mixed up Quote  Post ReplyReply Direct Link To This Post Posted: Apr/07/2017 at 1:17am
could it be the spring is installed backward is there a short and long side of spring or is the center pin centered in the spring just putting out ideas
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Post Options Post Options   Thanks (0) Thanks(0)   Quote uncljohn Quote  Post ReplyReply Direct Link To This Post Posted: Apr/07/2017 at 8:44am
Originally posted by tomj tomj wrote:

it's gotta be wrong springs. they sound very short. "only 59,000 miles" but unless you're the original owner you can't know what craziness was done under there in the past. if the springs were bad, they might have been replaced with the same mistake springs.

there's no way for the correct springs to go over-center at the shackles like that.



Short of having a picture,, this sounds like the solution.
There is no way that the rear shackle can sit straight up and down with the shocks removed (assuming for the moment air shock also used many times to raise the vehicle) unless the spring was too short in the first place.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lyle Quote  Post ReplyReply Direct Link To This Post Posted: Apr/07/2017 at 11:50am
Hypothetically if you have the correct spring, shackles sitting square and the spring shock combination overextends the spring arch (shortening the spring bolt center length), on rebound it could come back stuck in that shortened position.
In many four wheel drive vehicles they put in reverse arch leaf springs as the wheel travel is excessive and the reverse arch prevents this exact "lock-up" from happening.
Dave suggesting to take out the shocks should have eliminated this possibility but it still remains if the springs are to spec. and everything else is in good condition, then over exertion of the spring arc is the only possibility for this condition.
A shorter extension shock may be the solution.    
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