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Posted

after some searching on the site i still dont know the answer do rear leaf springs go bad? my car doesnt sag, but do 65 year old leaf springs need to be replaced?

if they do need to be replcaced are nos ones available or do you just go to the local spring shop and have them make you new ones.

Posted
after some searching on the site i still dont know the answer do rear leaf springs go bad? my car doesnt sag, but do 65 year old leaf springs need to be replaced?

if they do need to be replcaced are nos ones available or do you just go to the local spring shop and have them make you new ones.

Springs should not go bad from just sitting lightly loaded (vehicle weight). So if your height is correct your springs are probably okay. Might need cleaning up. And the wear parts of the shackles might need attention. But the springs themselves are pretty reliable things as long as you don't overload them.

Posted

At the same time I had them install new front springs that I had and also mount and balance my new white wall tires. I think the total was around $400 maybe less for all the work. Not sure the exact cost for the leaf springs.

Posted (edited)

The ones I received from ESPO springs were black. Here are some before and after pics. I had to get this work done so my WWW tires would fit.

Before

DSCN2770.jpg

After

DSCN2799.jpg

Before

DSCN2772.jpg

After

DSCN2798.jpg

Before

DSCN2629.jpg

Before

DSCN2784.jpg

After

DSCN2979.jpg

Edited by aero3113
Posted

if your car is sitting at or close to the correct ride height, then no replacement isnt needed. you can just give them a good cleaning and paint em up how you want and should be good to go. it they are looking kinda flat or even bending backwards then its time to refurbish or replace. the steel use it springs is pretty tough stuff. as long as there's no damage or warping on them then all is good.:D

Posted

to be honest I dont know what color they were from the factory. was waaay before my time. I do know that my car has a covering over the springs, kinda like aluminun siding, so I cant see if there is anything color on them. but most other cars I've had in the past have been painted black, so to me it seems to be a reasonable quess that they were black on the earlier mopars as well. even if they were natural, it seems like a good idea to have some sort of protection to keep the corrosion to a minimum, in my opinion.:)

Posted (edited)

I have to disagree about the shocks being what determins ride height, Unless they are air shocks or adjustable coil overs or have helper springs on them. The springs and their resistance to the load they carry are what determins ride height speaking of an unladen vehical, adding wieght will lower the ride height as the springs try to resist it. The shock absorbers are better understood as refered to on European terms as dampers. they are there only to resist the movement of the springs once it has been introduced to the suspension. Afer all if you can maually collapse a brand new shock how can it resist the 800 to 1000 lbs or more placed on it by a corner of the car or truck.

Leaf springs if not broken can be retempered and re-arched, restoring or increasing the ride height of the vehicle. Coils once sagged are pretty much non serviceable.

Edited by greg g
Posted

Mine appeared to be unpainted metal. They were coming apart and didn't have much of an arch to them and I replaced them. I got mine from Espo also (also known as Springs n' Things). I don't recall how much they were. You can find them online and I believe they list prices. They came unpainted and I painted them black just to keep the rust off. Here they are:

Rearaxleinstalled002.jpg

I would definitely replace the shocks, though. Even if the springs themselves are fine, you might want to replace the bushings. Boy, if you want to get dirty, that's a job for you.

Posted

There you go, Michael. When you're 100 years old and you bend down to look under your car (IF you can bend over to look under your car), you don't want to see something like that.

It seems to me that the springs on some of these old cars have very little to no arch in them. The ones aero pictured were practically flat.

Posted

I would sat those spring are a lowridin'.:D hey, I just noticed that posies has springs for mopars, supposed to lower 3 inches without using blocks. looks like they have lowered spindles too. sorry bout the hijack for a sec, just another option I just found.:D

Posted (edited)

I believe that the spring wrap visible in the picture above is one of the reasons that our springs deteriorated. They held in any moisture that got in there. And if the cars were stored outside over damp ground it got worse. Hate to say it, Niel, but it looks like there may one or more broken leaves under that wrap. Another problem as it was not easy to visually inspect them under the wraping. Arches usually don't have angles.

Edited by greg g

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