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Old Oct 12, 2009 | 06:33 PM
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Default Tires

My chassis is now completely rebuilt & ready to roll around the garage to get engine installed.....

255/60R15 Goodyear Eagle GT's - 5 since I need a spare

Sears has them this week for $114 apiece plus a $40 mail-in rebate.

Thoughts?
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Old Oct 12, 2009 | 06:35 PM
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I would go with a 225 for the spare. I don't know if a 255 will fit in the spare tire tub.
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Old Oct 12, 2009 | 07:44 PM
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Originally Posted by Jeffery73
I would go with a 225 for the spare. I don't know if a 255 will fit in the spare tire tub.
Didn't think about that - 225/60 or 225/70?
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Old Oct 12, 2009 | 08:08 PM
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Originally Posted by autoist

Sears has them this week for $114 apiece plus a $40 mail-in rebate.
$40 per tire mail in rebate? Or $40 off a set of 4?
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Old Oct 12, 2009 | 08:10 PM
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Originally Posted by autoist
Thoughts?
Suggest a search on Firestone Indy in C3.


225/60 or 225/70?
225/70
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Old Oct 12, 2009 | 08:30 PM
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Originally Posted by Jclgodale3
$40 per tire mail in rebate? Or $40 off a set of 4?
As I un
derstand it, its $40 off set of 4.....that brings the price down to about $100 each.
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Old Oct 12, 2009 | 08:38 PM
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Default tires

there even cheaper than that at Discount Tire Co. and they have great service.
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Old Oct 12, 2009 | 08:40 PM
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I tried the 255/60R15 and they rubbed the fender well on the frt. in tight turns, I think they called it bump steering, and the factory said some mods. might be required to trim fenders. I'm sure there are guys on this forum who can tell you ins and outs. I run P-235/70R15 BF Goodrich, I did buy a rally wheel for the spare, but I've been thinking about a 195/70 R15 for it. I still have the org. donut spare in it now, which would probably blow out from age, LOL Waiting to hear from you guys on this. Have a great day. Gene
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Old Oct 12, 2009 | 09:01 PM
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Donut spare?
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Old Oct 12, 2009 | 09:08 PM
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Originally Posted by doctorgene
I tried the 255/60R15 and they rubbed the fender well on the frt. in tight turns, I think they called it bump steering, and the factory said some mods. might be required to trim fenders. I'm sure there are guys on this forum who can tell you ins and outs. I run P-235/70R15 BF Goodrich, I did buy a rally wheel for the spare, but I've been thinking about a 195/70 R15 for it. I still have the org. donut spare in it now, which would probably blow out from age, LOL Waiting to hear from you guys on this. Have a great day. Gene
Do you have a photo - side view - so I can see how those 235/70R15's fill the wheelwells?
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Old Oct 12, 2009 | 09:25 PM
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I would go with the same size spare as you are running on the car. If not what are you going to do with the flat tire when it won't fit in the tub?

I still need to get one for my car, just driving and hoping for the best for now.
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Old Oct 12, 2009 | 09:29 PM
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I had to carry the spare in the frt. seat to the nearest place. I know there are guys on this forum that have worked this out. Come on guys, tell this guy the size tires he needs. Have a wonderful day helping out. Thanks. Gene
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Old Oct 12, 2009 | 10:04 PM
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Default C-3 side view

Here are some side views so that you can see how the tires fit.
Attached Images     

Last edited by doctorgene; Oct 12, 2009 at 10:28 PM.
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Old Oct 12, 2009 | 11:22 PM
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How did they affect your speedometer?
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Old Oct 13, 2009 | 07:56 AM
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225/70/15 & 255/60/15 which was a later option are correct dia. for speedo.
The major changes for 1978 included a larger gas tank & therefore less space for the spare.
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Old Oct 14, 2009 | 03:10 PM
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Well, I went with the 255/60R15 B. F. Goodrich TA's...ordered them today...may have my chassis rolling by weekend.

I'm putting the spare tire carrier on the chassis right now, so I'll try one of the mounted tires to see if it will fit...
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Old Oct 14, 2009 | 06:37 PM
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That's what I've been running for about a year. I'm sure you will like them. Very nice ride and handling.
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Old Oct 15, 2009 | 09:29 AM
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I also have the 255/60/15 size tires on a 1980 and found that
205/75/15 is the same diameter and fits on the 6 inch donut
spare wheel and easily in the spare tire carrier.
Walmart stocks a Goodyear tire, which is still US made in this size
for about $60.
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Old Oct 15, 2009 | 09:55 AM
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The 255's are a little more than an inch wider than the 225's. Your carrier should adjust enough to absorb that difference. The stock tire for '77 was a G70-15 which converts to a 225 width. It's about a toss-up that 255's will fit on the front without rubbing. 235R60-15's are a good alternative...or even 245's. Good luck with your choice.
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Old Oct 15, 2009 | 10:29 AM
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Originally Posted by mark79,80
I also have the 255/60/15 size tires on a 1980 and found that
205/75/15 is the same diameter and fits on the 6 inch donut
spare wheel and easily in the spare tire carrier.
Walmart stocks a Goodyear tire, which is still US made in this size
for about $60.
Everybody keeps talking about a donut spare wheel....where can I find one?
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