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 [Non-text portions of this message have been removed] To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/ Yahoo! Groups Links To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto:Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/