Re: [Chrysler300] 300C front-ends and radial tires

["Thomas Miller" <tfm@xxxxxxxxxxxx>]

Ok,I'm going to hypothesize here,  ( but then again, you sort of
asked....)

I don't see the relationship between whatever sort of tire you happen
to run and "transmitting shock to the frame" when by design, all four of
the tires and wheels are somehow supended by an apparatus designed to
move up, down and *absorb* shock.  Then again, I'm no mechanical
engineer and that's just my gut reaction to this.  Anybody else want to
chime in?  I've ran radial tires on not so modern cars for 25 years now
and have never heard or seen of such a thing.  But then, that's just
me!

Best Regards to all,

Thomas F. Miller
300C, 300M Spec.
tfm@xxxxxxxxxxxx

>>> "L.Andrew Jugle" <lajugle@xxxxxxxxxxx> 10/7/2004 8:44:22 PM >>>


I ran Sears/Michelin radials on my white 300 from 1972 to 1987 (same 
tires) for about 30,000 miles. Was careful about alignment. First guy 
to align car warned me, "The radials transmit shock to the frame".

That set of tires met demise by tread separation (shortly after 120 
MPH plus run at Chrysler Proving grounds) and Sears allowed "tire 
failure" with 2/64ths tread wear. I had  my choice of any tire Sears 
stocked at time as warranty adjustment.

When I bought second car in '76, it had shiny bald original 
bluestreaks on car. Replaced them with radials and proceeded to put 
about 40,000 miles on chassis.

By the mid 1990's BOTH cars developed frame cracks and sagging. The 
frame shop that welded up both cars attributes failure due shock that 
radials transmit to frame. White car both sides were cracked, "Crime 
Story" black car had only passenger side go, that side which takes 
more pot holes and abuse. (Not to mention stunt driving in Las Vegas.)

Anyone else experience frame cracks and sagging on 300C converts?? 
How many miles of radial use??

L. Andrew Jugle, Elmhurst,IL







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