Radials for Mid yr.

[Dave Stafford]

Anybody running 215 X 75 X 15 Coker Redlines on a Mid year? These are about an inch bigger tire than a 205 X 75 and I am wondering about clearance. Thanks

[Dave Ware]

Re: Radials for Mid yr.

I have a friend that is running the exact tire you describe on his '67. Their was not quite enought clearance in the forward portion of the front wheel wells, so he had to enlarge the wheel well slightly in the area of the parking lights to gain the clearance. The tire will also rub the frame rail when the wheel is turned max to the right or left. I think I would use 205/75R15. A 215/70R15is another option. It is a little wider than the 205/75R15 and just about the same diameter.

[Duke Williams (22045)]

Re: Radials for Mid yr.

Both the 205/75 and 215/70 are approximately the same OD and revs per mile as the OEM 7.75-15 (775 revs/mile). They're off only about two percent from a 6.70-15 (760 revs/mile). A 215/75 (if that wasn't a typo) would be too tall.

Duke

[Mark Johnson (27394)]

Re: Radials for Midyear

I'm running 215x70R15 Pirelli's on my '66. They provide good clearance, a great profile, and a fine ride for a daily driver (And the whitewall diameter is 5/8").

Mark

[Don]

Re: Radials for Mid yr.

We run 215/75/15's on our 64,and we've never had a clearance problem.We also have an original never used 6.70/15 spare and we think the 215's measure and look closer to a 6.70/15 than any other size.We have read that some owners have problems with this size, and it may be due to a different wheel offset or body sag. Don # 31753

[Duke Williams (22045)]

Difference in track dimensions

The drum brake C2s have about 0.6 less track dimension that the '65-'66 disk brake models (all with the production offset 5.5" wheels), so a drum brake model has a little more room on the outside.

I found a rev/mile spec of 746 for a 215/75 Dunlop. Although 215/75s are probably closer in OD to a 6.70-15, their rev/mile spec is closer to the old 7.10-15 (743 rev/mi).

Another thing to consider is performance level. 215/75s are designed for non-performance oriented sedans and light trucks and will have significantly less grip, steering response, and speed rating (if any) than the best 215/70s, although they will probably provide a better ride. My recent research indicates that the GY H-rated Eagle GT+4 is probably the best currently available tire for a C2 in a 215/70. The V-rated Michelin XWX reproduction available from Coker Tire may be a bit better (not sure), but they cost well over twice as much for a set.

Duke

[Paul Cantin]

Re: Radials for Mid yr.

My 67 Convertible(small block-automatic- air conditioning) has (4) P205/75R15 Classic 3/8 Redlines from Coker installed the last quarter of 1997. They have over 25,000 miles of wear with no defects, or clerance problems.They are mounted on reproduction bolt on wheels. I have 4 more (same set up)ready to go on my 67 small block coupe as soon as it's finished being painted.