Until I read your email, I forgot that I had the same circumstance happen with my 300G. Years ago, about 1982 or so, I had new springs made to factory specs, installed them and had some front end work done all about the same time. Shortly after that, I noticed the car lower on one side, mostly noticeable in the back. I went back to the mechanic, he was 300 Club member Kent Hurt, who told me I didn’t have a problem with the springs, it was a torsion bar adjustment issue. He was right, once the bars were adjusted the problem went away.
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.
’63 300 Conv
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.
Posted by: "Bob Jasinski" <rpjasin@xxxxxxxxxxx>
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