Re: [Chrysler300] Period correct tires

[MATTHEW OSTROWSKI <m.ostrowski@xxxxxxxx>]

John, Rich & group,
  I checked the spare in my car today, it is a Good Year Blue Streak and it sure looks original! This weekend I will pull it out, photograph it and pass it along to those interested. It sounds like I really don't want to use this should the need arise. Possibly a second spare for those long rides or a AAA membership might be advisable.
   
  Regards,
  Matt O

cotejohnr@xxxxxxx wrote:
    Rich,
Don't you mean that the P235/75/15 is closest to the 880X15!  (NOT the P225/75/15)  I think that the diameter is the most important dimension to match if your choosing a replacement radial. Also the radial design lets the car sit a little lower than a bias ply even though the overall diameter is the same or very close to the same. Been there, done that.
John R. Cote

  Guilford, CT.

  

-----Original Message-----
From: Rich Barber <c300@xxxxxxx>
To: 'MATTHEW OSTROWSKI' <m.ostrowski@xxxxxxxx>; 'Chrysler 300 group' <chrysler300@xxxxxxxxxxxxxxx>
Cc: Gil Cunningham <Lettercars@xxxxxxx>
Sent: Sun, 4 Nov 2007 9:13 pm
Subject: RE: [Chrysler300] Period correct tires

          Matt:

I have done some research on this issue with these findings:
Load Tread Cross Outside
Size Rating Width Section Diameter
P225/75R15 1874# 6.30 8.80 28.30
P235/70R15 1896# 7.00 9.50 28.00
P235/75R15 2028# 6.60 9.30 28.90
8.00X15-Coker 1800# 4.75 8.30 29.08
8.00X15-General LR-B 5.35 8.30 29.10 
J78X15 1860# 6.00 8.70 28.72
L78X15 (spec) 1970# 5.88 8.85 29.30
L78X15 (actual) 1970# 6.25 8.75 29.31

The General is a General Dual 90 available from Lucas Automotive.
The L78X15 (actual) is a never used Remington bias-ply tire mounted on a
5.5" Motor Wheel wire-spoke Chrysler rim (mine). Once you commit to a
radial tire, the size choice is yours. Several vendors offer these tires
with the correct 3" WSW. The original tires were quite a bit narrower than
the P-series radials or the J/L bias ply tires and perhaps a little bit
taller. My conclusion is that the P225/75R15 comes the closest to the
8.00X15 dimensionally and may give you a 0.1" lower ride and a 3%
speedometer error. Others that have actually purchased and used radial
tires may have other guidance. I have been unable to find any original
specifications for the Blue Streaks for comparison.

I would be indebted to you if you would copy and transcribe all cast-in
information, letters, numbers and symbols on your original spare, especially
if it is a Goodyear Blue Streak. And, if you would measure the OD,
cross-section width and tread width and remaining depth at 30 psi inflation
pressure, I'd be doubly in debt. A digital picture of both sides would be
great.

And do preserve that old Blue Streak tire. They are like hens' teeth. I
have heard that some members have been able to collect complete sets for
their 300's.

If our judges have specific guidelines on deductions for non-8.00X15 Blue
Streak tires, that information would be of interest, also.

C-300'ly,
Rich Barber
Brentwood, CA
1955 Chrysler C-300

-----Original Message-----
From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of MATTHEW OSTROWSKI
Sent: Sunday, November 04, 2007 5:05 PM
To: Chrysler 300 group
Subject: [Chrysler300] Period correct tires

Hello 300 Members,

I know we have discussed the tire issue, however I'm off to buy a set of
four for my G. I want to get the correct size and look for the car. My "G"
has what I believe is the original spare in the trunk. It is a Good Year
8.00 - 15 with a 3"whitewall. Is this correct in size/whitewall width for
the car? Does this translate to a P235/75R15? Any source better than others?
I appreciate your response.

Warm Regards,
Matt Ostrowski
Norwich, Ct

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