Does anyone know the actual spec.s on the arching of the 63 rear spring leaves. ? T.I.A. David
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Re: 63 rear spring rearch.
I don't know the specs but I believe Eaton Spring offers this service. Try calling them. -
Re: 63 rear spring rearch.
You can try Muskeegon Brake as well... They supply OEM replacement springs and are good guys to deal with.Comment
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Re: 63 rear spring rearch.
Yeah, the standard suspension, 9-leaf, spring has a free arch spec of 10.0 inches and there have been prior threads on this...
You measure free arch by drawing a line through the center of the spring's end mounting holes and proceeding up from that chord to the center, inside bottom leaf.Comment
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Re: 63 rear spring rearch.
Most "spring rearch" attempts fail. The problem is that there is no consistent process control. It depends on who does it.
My contention has always be that rearching is a waste of money and can ruin the spring.
Few springs "wear out". What kills them is loss of material via corrosion, and a simple inspection of the leaves can tell you if this is the case.
Most "spring sag" problems are simply compression and hardening of the four spring link cushions. About 20 bucks and an hour orftime will have a new set on the car. The ride height will likely be restored and there will be a dramatic reduction in ride harshness.
If new cushions don't restore ride height, you can use shorter bolts or shims.
There's always a possibility that "spring sag" is caused by a broken leaf that may not be easily visible with the spring on the car, so the Rx is to remove/disassemble the spring, clean it up, and if no broken leaves are found, reassemble it with new liners, and I also recommend painting the leaves with a good corrosion resistant paint system to slow future corrosion even though it will lose some judging points.
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