Re: [Chrysler300] Which Tires for my 64 300K Vert?

["EMills_ATC millserat@xxxxxxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>]

Assume your concern was 235/75 not 835 (no such animal). The 235/75R14 is theoretically closest to overall diameter of original 8.50-14 (28.3 in nominal) and remember the J had 7.60-15 which is slightly taller still (28.8-29 inches) so I doubt diameter would be an issue.

(In my previous email I mistakenly said 8.50-14 was same OD as P235/75R14 - THIS WAS IN ERROR - I was looking at P235/75R15 at 28.3 OD which is same as 8.50-14. The correct OD for the P235/75R14 is 27.87)

Width, especially Tread Width would possibly be an issue as the older bias tires had much narrower tread. Nominal section width of 8.50-14 is right at 8 inches but original tread width is less than 5 inches. Published section width on the American Classic P235/75R14 is 9.25 with 6.3 tread width on a 27.87 Overall Diameter.

My guess is the main issue would be at extreme positions of steering and corner of tread on P235/75R14 might rub inner fender, but if the much taller 7.60-15 worked on the J I doubt you would have a problem since it is a combination of diameter and width you would worry about. This might be further aggravated if not stock wheel width or offset, but I will defer to someone with 300K experience with these tires.

As for the P215/75R14 at 26.7 inches OD, the car will sit at least an inch lower - 0.75 difference due to tire diameter plus radials squat lower than older bias tires.

Curious to what size tires & wheels are now on car and what if any issues on clearance?

Best, Ed

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

On 12/19/2017 9:29 PM, Myron Plotkin wrote:

I think the 413 w/the cross ram used the 850There was some concern the 835 may be too large.  

On Dec 19, 2017, at 10:03 PM, EMills_ATC millserat@xxxxxxxxxxxxx [Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:

 

As I recall 300K had 8.50-14 (28.3 in nominal diameter) - replaced by 225/75R14 no longer available - suggest you go with the 235/75R14 (28.3 nominal diameter) if you are willing to pay the price

The 215/75R14 are equivalent to 8.00-14 but somewhat smaller diameter - and with more load capacity  - Typical 215/75R14 is about 26.7 inch OD with 1664 pounds load capacity.

Largest production tires in 14 inch are P215/75R14 narrow whitewall Hankook H724 at about $70 a piece from Discount Tire Direct.

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

On 12/19/2017 7:55 PM, plotkin_associates@xxxxxxxxxxx [Chrysler300] wrote:

 

Looking to replace the blackwalls that my 64 300K vert  had on it with the 1" white wall radial tires available from American Classic.  My question is which size - the P215/75 R14 or the P235/75R14?  Which would be the best for ride and looks?

Myron

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Posted by: EMills_ATC <millserat@xxxxxxxxxxxxx>

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