Re: [Chrysler300] J Ram K tires

I have 8.50x14 bias ply’s on my single 4bbl K. Had them for the last 3 years. No problems. Yes bias ply’s wonder a bit. But I like the original look and feel. The main reason I went to 15” on the Ram K was I wanted something different then the Factory K hub cap. Basically a Newport cap with a 300 medallion. I ended up going with J caps. Still a factor look. My only issue with the B F Goodrich’s is the 5” tread width. We’re the original Goodyear’s that narrow in 63,64 ?

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On Apr 19, 2018, at 1:09 PM, EMills_ATC millserat@xxxxxxxxxxxxx [Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:

If you want bias ply tires like 1964 OEM those are reasonable, but not really any different from 8.50-14 or 9.00-14 available from same source. But personally if I had changed to the 15 inch wheels, I would be going with a production grade radial - as opposed to a low volume $pecialty tire made in small batches frequently with old technology.

OE dimensions from BF Goodrich Tire Engineering Data

8.50-14 were approx 28.2 diameter,

9.00-14 approx 28.8,

7.60-15 approx 28.8 - but load capacity same as 8.50-14

You have several good options in current production radials with narrow whitewall. These are actual measured dimensions of several NOS and current radial tires

Size Brand Model Vintage
Wheel Pressure OD Decimal Section Width Tread Width Sidewall Width

8.55-14 Goodyear Double Eagle 1968
14x6 32 psi 28.06 8 5/8 5 7/16 n/a

8.85-14 BFGoodrich HT Silvertown 770 1968
14x6 32 psi 28.31 8 7/8 5 1/4 5/8

HR78-14 Michelin X Radial 1980
14x6 32 psi 27.50 8 5/8 6 3/8 5/8

P235/75R14 Coker Classic 2002
14x6 32 psi 28.30 8 7/8 6

P225/75R15 Hankook Optimo H724 Current Kor/Indon 15x6 32 psi 28.06 8 5/8 5 1/2 5/8

P225/75R15 Nexen N'Priz AH5 Current Korea 15x6 32 psi 28.19 8 3/4 5 5/8 5/8

P235/75R15 Cooper Trendsetter SE Current Mexico 15x6 32 psi 28.50 8 7/8 6 3/4

P235/75R15 Nexen N'Priz AH5 Current Korea 15x6 32 psi 28.75 9 5 7/8 5/8

P235/75R15 Hankook Optimo H724 Current Kor/Indon 15x6 32 psi 28.75 8 7/8 5 3/4 5/8

P235/75R15 Toyo Extensa A/S Current Japan 15x6 32 psi 29.00 8 3/4 6 1/4 3/4

Edward Mills Antique Tractors 1930-1960 Antique Cars 1960-1985

On 4/19/2018 11:43 AM, Greg picgrego@xxxxxxx [Chrysler300] wrote:

Looking to purchase a set of tires for my ram K. Switched over to 15 rims. I see Coker has B F Goodrich 760 x15 bias ply with a 1” white wall. 28.6” OD. 5” tread width. Seems to be a close to original replacement. Has anyone had any experience with these ?. Or recommend a replacement ?. Greg

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