The time has come to get new tires for our 56 Sunliner.  I know the car originally came with 670 size tires, with 710's coming on the Fairlane Victoria.  (Im going to get the Coker WW radials that have a bias ply look/shoulder)

If I look at the specs on line, the only real difference seems to be the listed Tire Section width.  The 670 is listed at 6.59", and the 710 is t 7.7"  The outside diameter is only different by 0.03", tread width is the same, rim size is fine, etc.

So I assume the 670 would look narrower/less "bulged out", and more like an original bias ply tire?  Would the 670 look more "correct"?  

Last time I bought WW radials from Coker, they recommended the 710's, which is what is on there now, and I always thought they looked a little too much like a modern radial, as the sidewalls bulged enough that the wire basket hubcaps rubbed on the whitewall (and made a squeaking sound from the baskets).  Would there be any noticeable difference in ride/driving characteristics?

Car is now used mostly for local cruising and Concours events, so we want it to look as correct as possible.

Not looking to start a debate about coker vs diamonback, etc.  Ive had several sets of cokers and they have been good.

Thoughts?




Ron Grove

Wauconda, IL