Will these Tires Fit OEM Rims?

Chance2336 · 03-22-2005, 05:22 AM

I have the 18'' OEM rims on my LE. I want to put on Terra Grapplers.. will 285/60/18 work on my factory Rims ??

Clancy · 03-22-2005, 07:06 AM

I don't see why not. Clearance may be another issue - you want to test fit that...

You'll lose a little sidewall height, going from a 265/70 to a 285/60 though...

265/70 = 185.5 mm sidewall - which equals 7.3 in (x2) + 18 in wheel = 32.6 in tire height (stock)

285/60 = 171 mm sidewall - which equals 6.7 in (x2) + 18 in wheel = 31.4 in tire height

Your new tires will be almost an inch wider, but more than an inch shorter...

Chance2336 · 03-22-2005, 07:28 AM

so the truck will not sit any higher???

Doghouse · 03-22-2005, 07:32 AM

lower, and your spedo will be up by about 5-7 mph
real fuel economy will go down (increased friction and more rev's per mile)

It will work, you just need full knowledge.

BTW, Clancey nice job on explaning the math. I see is wrong so many times.

Chance2336 · 03-22-2005, 12:11 PM

What do you guys think I should do for a more aggressive Tire than stock. I've gotten stuck a few times with these tires in snow.. THEY SUCK !! I want the BF Goodrich All Terrain TA KO but they dont make them to fit the 18'' OEM rim that I know of.....??

niceun · 03-22-2005, 02:34 PM

...if they look like the 18's on the new f150, don't do it. thay look too low profile for a truck our size. go for the same sidewall size, maybe wider? jmho

brif · 03-22-2005, 04:48 PM

Quote:

Originally Posted by Chance2336

What do you guys think I should do for a more aggressive Tire than stock. I've gotten stuck a few times with these tires in snow.. THEY SUCK !! I want the BF Goodrich All Terrain TA KO but they dont make them to fit the 18'' OEM rim that I know of.....??

The size you're looking for from bfg is 285/65/18. They will be pretty similar in size to what you have now. They usually run about $216/tire.