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New Steel Leaf Spring

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Old Dec 3, 2004 | 07:09 PM
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Default New Steel Leaf Spring

Just replaced my old steel leaf spring ('75 coupe) with a new one over Thanksgiving. My rear wheels are now straight but I'm about 4 inches too high in the back. Am having the longer bolts installed tomorrow to bring it down. Some of you will probably be interested in finding out if it works and if lowering the spring will make the wheels bow out at the bottom and in at the top. That's what I'm most worried about. WHen I bought the car it was this way. Will let you know how it turns out. Am keeping my fingers crossed. I'm almost there.
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Old Dec 3, 2004 | 07:28 PM
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You probably bought the same spring that I have.... one of the previous owners replaced my rear spring and the car was sitting at 30.5".....
I rebuilt the entire suspension but re-used the steel spring, after I was done rebuilding everything it was still at 30.5" (what a surprise)

I just installed the longer bolts last week, that lowered the rear 1.5" , I am now at 29" with a 275-60 tire. the end of the spring is now closer to the tire but there's still 1" clearance...

The camber can easily be adjusted, did you already replace the strut rods ? If not then buy the adjustable rods from VBP or MidAmerica or others... they're only $90.
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Old Dec 3, 2004 | 07:38 PM
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Originally Posted by RedBad1979
You probably bought the same spring that I have.... one of the previous owners replaced my rear spring and the car was sitting at 30.5".....
I rebuilt the entire suspension but re-used the steel spring, after I was done rebuilding everything it was still at 30.5" (what a surprise)

I just installed the longer bolts last week, that lowered the rear 1.5" , I am now at 29" with a 275-60 tire. the end of the spring is now closer to the tire but there's still 1" clearance...

The camber can easily be adjusted, did you already replace the strut rods ? If not then buy the adjustable rods from VBP or MidAmerica or others... they're only $90.
I"ll do that, get the adjustable strut rods. I should do that before getting the alignment, correct? Can I do the alignment myself with the new strut rods? Are there instructions with the rods on how to adjust them?
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Old Dec 3, 2004 | 07:45 PM
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If your alignment was fine before you changed the spring then only your camber is off and not the toe in/out. The camber is easy to adjust with a water level, you can do that yourself.
If you think that you're done with your suspension work, then I'd get a 4-wheel alignment done.

Oh, one more thing: the adjustable strut rods have left/right threads, you just turn the rod to adjust the camber negative/positive. You have to tighten the jam nuts pretty good and should use locktite on the threads for the jam nuts. These sometime come loose and that is dagerous.

Last edited by MYBAD79; Dec 3, 2004 at 07:48 PM.
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Old Dec 3, 2004 | 08:01 PM
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Originally Posted by RedBad1979
If your alignment was fine before you changed the spring then only your camber is off and not the toe in/out. The camber is easy to adjust with a water level, you can do that yourself.
If you think that you're done with your suspension work, then I'd get a 4-wheel alignment done.

Oh, one more thing: the adjustable strut rods have left/right threads, you just turn the rod to adjust the camber negative/positive. You have to tighten the jam nuts pretty good and should use locktite on the threads for the jam nuts. These sometime come loose and that is dagerous.
Even with the sagging rear end, I had a pretty smooth ride before I changed the spring. Now the ride is hard and I have a bad vibration in the steering wheel. Nothing was done to the front wheels/suspension.
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Old Dec 3, 2004 | 08:07 PM
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I suspect that your half shafts are in a different angle now that the rear is so high.... that puts additional load on the U-joints....

You may just want to get a refund for the spring.... clean it up and send it back.... where did you buy it ? I heard the Muskegon (probably spelled wrong) is the worst you can buy...that's probably what we both have, mine is harsh, too...
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Old Dec 3, 2004 | 08:35 PM
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How many leafs are in the spring. Isn't there a 9 leaf and a harsher 7 leaf?
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Old Dec 3, 2004 | 08:55 PM
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Originally Posted by superfine69
How many leafs are in the spring. Isn't there a 9 leaf and a harsher 7 leaf?
It's the 9-leaf. That's also what the car had originally.
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Old Dec 3, 2004 | 09:13 PM
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yep, the same that I have.... you'll get it lowered to 28.5' - 29" with the 8" bolts, that's it... send it back as long as it's 'new'....
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Old Dec 3, 2004 | 09:28 PM
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If you can't or don't want to send it back ($hipping co$t$),
then find a spring shop that can re-arch it for you. It can be
done, and I don't think it's THAT expen$ive.

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Old Dec 4, 2004 | 12:44 AM
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I found the most important thiing with the adj struts is antisieze, Mine became unadjustible after one year until I soaked them in CLR to break the rust and even then I had to use a cheater bar, Soak the threads with antisieze then apply locktite on the ends.
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