stock tire size.

layedout72 · Post by **layedout72** » Mon May 15, 2006 8:35 pm

what is the stock wheel and tire combo on 72 f100's swb

68F250 · Post by **68F250** » Mon May 15, 2006 8:51 pm

15" x 5.5" wide wheels with G78-15 8 ply tires.

The lug pattern is 5 x 5.5"

layedout72 · Post by **layedout72** » Mon May 15, 2006 10:00 pm

im trying to figure if i have correct tires for stock size, if my speedo reads correct or not. i have 235/75/15's on.

68F250 · Post by **68F250** » Mon May 15, 2006 11:03 pm

Your tires are a little over 1" taller than OE. I'd guess about 3mph difference between the two at 70mph, your speedo would be reading low.

G78-15, 27.71" tall
P235/75R15, 28.88" tall

fordman · Post by **fordman** » Mon May 15, 2006 11:25 pm

so 225's would make it more correct?

68F250 · Post by **68F250** » Mon May 15, 2006 11:35 pm

Well, 225's would make it more correct but 215's would put it spot on and that's the cross-reference for a G78-15.

P225/75R15, 28.29" tall
P215/75R15, 27.70" tall

layedout72 · Post by **layedout72** » Tue May 16, 2006 9:23 pm

well, it seems to be more around 10 mph off

. im guessing i need a new speedo.

no, not the swinsuit

speedo......cable

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stock tire size.

stock tire size.

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re: stock tire size.

re: stock tire size.