Re: [Chrysler300] Eaton Springs
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Re: [Chrysler300] Eaton Springs

Agree 100% with this , Mark 
Studebaker guys use mopar SS springs and put a stude  leaf to Match them up , essentially . More in depth info there . 
Springs that are run nearer the stress level allowed in spring steels will bend more at load changes ride softer on bumps but will fail sooner and sag . One big dip or trunk  of gear  overloads it, goes beyond yield point bends spring. Nothing “wrong “ with that spring , but bad shocks allow the repetitive bends on dips . Wrecks spring. Also a limited number of times bending a lot is all you get . More leafs is the answer . I would not hassle Eaton . They help us . If it sat right in beginning and spring is applied correctly ( factory too soft on non J?)  other causes come in . Go up one leaf —-car is just way better , bends less lasts forever 
Point in setting torsion bar is excellent . That shop is really good .

Sent from my iPhone

On 30 Nov 2017, at 11:11 am, 'Mark Lindahl' mplindahl@xxxxxxxxxxxxx [Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:

Hi Doug,


I have a ’63 300 Conv.  The rear springs were sagging.  I brought it to a local shop that works on school buses and dump trucks.  They said they could help me.  They used the existing 6 leafs, but added one more leaf to make it similar to the 300J, at my request. Now I have 7 leaves and standard shocks. They also installed all new rubber pads between the leafs.  It went from sagging to actually being slightly higher in the back.


When I looked at the car, there was a tilt in the back (L to R or R to L).  I told him that I would like the rear bumper to look straight.  He took the car inside, adjusted the torsion bar, and everything looked perfect.


Initially, I don’t think they touched the torsion bars ( I don’t know for sure), but a slight adjustment on one side or the other and everything has been good for probably 15+ years.  Maybe this is worth a try?

I doubt the springs are sagging since the ones on my car are 55 years old.  Did they put in new pads between the leafs?  I would recommend the 7 leafs.  It is a much stiffer ride and better for cornering.



Mark Lindahl

’63 300 Conv


From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of 2HsandaHeritage@xxxxxxxxxxx [Chrysler300]
Sent: Tuesday, November 28, 2017 5:36 PM
To: Chrysler300
Subject: [Chrysler300] Eaton Springs



HI Group,

I installed new Eaton springs and KYB shocks on my 62 Sport conv. 2&1/2 years ago.

Rear of car was raised about 1 inch and then completely level.

Now left rear is 1 inch lower than right rear.

Right spring has a slight upward arc and left spring is flat or has a slight downward arc.

Should this have happened in just 2&1/2 years and less than 1,000 miles driven?

Any thoughts will be appreciated.

Doug Warrener



Posted by: John Grady <jkg@xxxxxxxxxxxxxxxxx>

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