FW: Re: {Chrysler 300} Torsion Bars

I am a Civil Engineer, and I believe it is a combination of material defects and/or fatigue. Fatigue occurs when the bar is loaded and unloaded a number of times, such as when you bend a piece of aluminum back and forth many times until it breaks. If the material is defective at a certain location, it will break in fewer fatigue cycles.

On Fri, Feb 18, 2022, 12:14 PM Nick Taylor <nicksgaragesd@xxxxxxxxx> wrote:

Since I live in Southern California I don't have to deal with corrosion that much. I did have a '71 Charger from Michigan that had rusted out driver floorboard. The I had to rest my heel on the torsion bar through the carpet to drive it.

On Fri, Feb 18, 2022 at 9:05 AM John W Sager <cleanthegarageout2@xxxxxxxxx> wrote:

Someone can correct me if I'm wrong, but it's my understanding the early T Bar cars had a material and/or heat treat problem. I think my '63 was a fluke.

They seemed to break while sitting.

It wasn't a corrosion issue, but the A Body cars often tore the rear T Bar anchor out due to corrosion. I had a '71 Dart "winter car" do that to me. Jacked it up and stuffed a short hunk of 2x4 between the lower control arm and the body so I could get to work that day.

John

On Friday, February 18, 2022, 11:50:42 AM EST, Nick Taylor <nicksgaragesd@xxxxxxxxx> wrote:

Is it just certain years with weak torsion bars or is it a corrosion problem? I've had a lot of mopars over the decades and even worked in a mopar wrecking yard in the 1980s and I've never seen a broken torsion bar in a car.

On Fri, Feb 18, 2022 at 8:08 AM 'Val Jeffers' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:
My Father was a Factory Service Representative for Chrysler and he told me stories of torsion bars breaking in the showroom.
Val

Sent from my iPhone

On Feb 18, 2022, at 9:35 AM, 'John W Sager' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:

My Dad's '57 Windsor did that when it was only a few years old. First one side and then the other a year or so later. The broken torsion bars were around and used as pry bars for many years.

The funniest was a '63 Dodge 330 I had. It was a little rough around the edges, but a decent car. My oldest son was about 7 years old at the time. I was standing in the garage and he had just walked up the driveway to check the mail. I was talking to him as he was walking back and when he got along side of the Dodge, the right torsion bar snapped and the car lurched and fell. He jumped when it happened.... Looked at me... Looked at the car... Looked back at me and said "I didn't do it!".

John

On Friday, February 18, 2022, 08:06:00 AM EST, Ronald Klinczar <rjklinczar@xxxxxxxxx> wrote:

I do know that many people woke up in the morning and found their car on the floor when their torsion bar failed.

On Thu, Feb 17, 2022, 7:37 PM 'Terry Mctaggart' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:

Does anyone know why Chrysler abandoned the seemingly successful torsion bar front suspension? Terry McTaggart

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