BF Goodrich Radial T/A Tires

[MoparThunder]

I need new tires and have 215/65/15 on the front and 265/50/15 on the back. I don't see that they make 265/50 anymore in this tire. I like the raised white letter look. I have Magnum 500 rims but I'm not sure of the rim width. I am assuming 15x7 but is there a way to tell w/o removing the tire first? Will 275/60 fit on the rear? How about 225/60 or 235/60 on the front?

 

[DWilbur]

What car are do you have. I have 1973 SSP with 245 in front and 295 in back.

 

[MoparThunder]

It is a 1968 Charger R/T

 

[badmopar67]

Yes a 275/60/15 will definitely fit on the back of a 68 charger and yes a 235/60/15 will fit the front

 

[JamieZ]

If you remove the wheel, then deflate the tire and lay it on it's side you should be able to put a piece of wood or a ruler across the rim and measure the height from the ground. You might not be able to get it completely flat but you should be able to tell if it's a 7" or 8" rim.

I put 245 60 R 15s on all 4 corners of my 68. When I was deciding on tire sizes, I put 275 60 r 15's off my challenger onto the rear. They fit without issue:

 

[MoparThunder]

will the 275 fit on a 7 inch rim?

 

[HawkRod]

will the 275 fit on a 7 inch rim?

Well, yes, but it really is not recommended. I have a 275 on my 8 inch rim, and even that rim is too small according to the experts. The rule of thumb I have heard is that the rim width should be within +/- an inch of the tread section width. I can say that the center of my tire has worn slightly faster then the outboard tread. This is either because it is overinflated or because the rim is too small for the tire. I am pretty careful with my tire inflation, so I think this is evidence that my rim is slightly too small. Don't get me wrong: it works, but it is not ideal. A 7 inch rim would be even worse. I wouldn't so it...

 

[JamieZ]

Tirerack.com says 7.5 - 9.5" for the rim width on a 275 60 R 15. Smaller rims tend to make it look like the tires are "bulging", while larger sizes tend to make the tire look more "square". The look varies by manufacturer. In my opinion the BFGs tend to have more "bulge" while other brands like Cooper and M/T look more "square"

 

[badmopar67]

Here's a 275/60/15 on 8"rim
View attachment 244630

 

[MoparThunder]

I believe the 275/60 is 2 " taller than the 265/50 so not sure how that will look. I think I am sold on the 235/60 for the front. The only other size available is the 255/60 for the rear in 15 inch.

 

[moparcanuck]

275/60R15 on 8" Cragars.

 

[MoparThunder]

After reading a lot on this subject I think it would be smart to put the 255/60 on the rear and 235/60 on the front. I will check this weekend on the rim size but I"m pretty sure they are 7 inch. The only other option is to sell the 2 rear rims and buy 8 inch ones and get 275 or 295. I would like the look of the wider tire though.

 

[Gpuller]

Here's a 275/60/15 on 8"rim
View attachment 244630

Did you have to get creative with the backspace to fit 275's in there? Didn't think there was that much room. Looks great!

 

[MoparThunder]

Have these style rims been a good selling item on here?

 

[MoparThunder]

I ended up buying 8" rims for the back and went with 275/60.

 

[badmopar67]

Did you have to get creative with the backspace to fit 275's in there? Didn't think there was that much room. Looks great!

Thanks, No creativity on the backspacing at all I got the 275/60/15" tires, 8 inch rim with 4 1/2" backspacing and I narrowed the axle 9/16" on both ends to make them work without moving the leaf springs or modifying the fender lip. I did have to buy Yukon chop axles and cut them down to the proper length. It was well worth the little extra work involved.

 

[mopar 3 B]

I have been running 15x10 with 275/60/15. 4-1/2 inside with no problems on my 68 Charger Rt. I have been buying tires this was for years with no problem. Measure the unmounted bead width and fit it to a wheel not less than bead width or over by 2".

 

[Deleted member 214]

One thing a lot of people forget is that if you have Sure Grip your spare had better be the same diameter as your rears or you will burn out your Sure Grip if you use the spare. One wheel constantly going a different speed than the other all the time.

 

[MoparThunder]

One thing a lot of people forget is that if you have Sure Grip your spare had better be the same diameter as your rears or you will burn out your Sure Grip if you use the spare. One wheel constantly going a different speed than the other all the time.

Thanks that is smart advise. I bet a lot of people don't think about that.

 

[Dreamcatcher]

I ended up buying 8" rims for the back and went with 275/60.

View attachment 249704

Mopar Thunder, Totally awesome car!! Is it a true R/T? Is that original color? I am building a tribute 68 R/T as a tribute to my favorite cousin(Who passed away). He had one exactly like that when we were kids. I hunted the car he had for many years with no luck. So I am building one like it right down to the 8 track. Just wanted to say what a beautiful car you have there. Even the picture stirs many memories.