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PostSlut
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I run 235/75/15's on my 73 Thunderbird....I'm sure I can get taller, but really have no reason.

I also ran the same size on my old truck...a 90 F150.
 

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What's the tallest 15" passenger tire available? Anyone have any idea?
Thanks!
Monster Mudders ??? Naw, they's truck tires. :confused:

There used to be some tires that were popular called "Marsh Sprinters" back in the '70s, 11.00x15. Fat and tall! ;)

Might go to "Tire Rack" and search by size or brand. If you have a particular tire you like, look it up by specs and see a table of available sizes.

I found a 255/70-15 in the B F Goodrich Radial T/A that's 28.9 " diameter.

I found 8 listings there for that 255/70-15 size including the above tire and Goodyear Eagle GT II and Firestone Firehawk Indy 500.

Didn't try 265 or 275 / 70 -15 yet. :)
 

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Well, today I went with a buddy to the first day of Super Chevy ... test and tune, at Virginia Motorsports Park. Was a late '60s Chevelle there with 285/70-15 B F Goodrich Radial T/A rear tires on deep Rallys that were stuffed under the rear fenders. I liked it. Car sat level, more normal looking 235/60-15 up front.

30.8" tall .... tallest passenger tires I've found yet.
 

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Discussion Starter #6
Well, today I went with a buddy to the first day of Super Chevy ... test and tune, at Virginia Motorsports Park. Was a late '60s Chevelle there with 285/70-15 B F Goodrich Radial T/A rear tires on deep Rallys that were stuffed under the rear fenders. I liked it. Car sat level, more normal looking 235/60-15 up front.

30.8" tall .... tallest passenger tires I've found yet.

This is exactly what I've been looking for. However, just try to find them! I understand from BF Goodrich that they aren't making them anymore but you'd think there would be some NOS somewhere out there.Thanks!
 

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Discussion Starter #7
30.7

This one is 30.7...just wonder how it would look?
Size
Service Description
Load Range UTQG Max
Load Max.
Inflation
Press. Tread
Depth Tire
Weight Rim
Width
Range Meas.
Rim
Width Sect.
Width Tread
Width Overall
Diam. Revs
Per
Mile Country
of Origin*
265/75R15
Load Index 112 = 2484lbs (1129kg) per tire
Speed Rating “T” = 118mph (190kph) 112T SL Treadwear: 580
Traction: A
Temperature: B580 A B 2469 lbs.
44 psi
12/32"
39 lbs. 7-9"
7.5"
10.5"
NA
30.7"
678
Country of Origin "US" = UNITED STATES OF AMERICAUS
 

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I could swear back in the day there were tires that were 78's, that was the 1960's and 1970's. Damn...showing my age.
 

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I could swear back in the day there were tires that were 78's, that was the 1960's and 1970's. Damn...showing my age.
Going back into the '50s and you'll find tires like 7.10-14, 7.60-14, 8.10-15, 9.10-15 ... then in the early '60s they changed to a very slightly lower profile, about 83% aspect ratio I think, and sizes like 7.25-14, 7.75-14, 8.25-14, 8.55-14, and etc which replaced the older ones in the books. Later '60s saw the 78, 70, and later 60 series with letter designators, A78-13, C78-14, D78-14, D70-14, E70-14, F70-14, F60-14, G60-14, G60-15, L60-15, etc.

Daddy went in with a bunch of others at his job and they ordered a whole truck load of the first radials we saw, he got 215-14 Michelin X Radials to replace the 8.25-14 tires on our 'new '65 Plymouth Belvedeer Wagon. Right much taller than a current 215/60-14 tire, it was 80+ aspect ratio. People were always riding by pointing at the tires trying to tell us they were low.
 
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