8.00-15 nominal diameter 29.3 to 29.7 inches (variability by brand back then).
I think Coker now has some 8.00R15 vintage looking whitewalls not
sure sidewall width, but 1961 was last of the wide whitewalls and
they had gotten progressively narrower by year til they went to
narrow white in 1962. There may be some better experts here, but
as first responder, I would guess about 3 inches - not much wider.
225/70R15 (nominally 27.4 inch OD) equated to G70-15 or in your vintage 7.10-15.
227/75R15 (28.3 OD) H78-15 or roughly 7.60-15; 235/70R15 (27.9 OD) H70-15 (same load as 225/75R15 or H78-15)
235/75R15 (28.9 OD) J78-15 or roughly 8.00-15 - still slightly smaller OD and radials even at higher pressure will have lower static loaded radius (shorter sidewall with more bulge at bottom).
Edward Mills Antique Tractors 1930-1960 Antique Cars 1960-1985
On 8/26/2017 9:47 PM, 'Michael Ashmore' michael.ashmore@xxxxxxx [Chrysler300] wrote:
Posted by: EMills_ATC <millserat@xxxxxxxxxxxxx>
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