Have a 04 2500 quad cab 4x4. I want to put BF Goodrich A/T KO 315/70 x 17 = 34.5 on it. Local 4x4 shop that does hundreds of mods/lifts/etc. says they will fit without leveling kit. What does fellow CTD owners have on their rigs and words of wisdom? Is it too much?

 

AllI know is this .... Hope it helps



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it'll fit, but you might have a rubbing issue at lock. . .a 2" leveling kit will cure that.

 

Ok,
I have a couple of questions. So please bear with me as I'm still learning about tires. Is it ok for the 315 tire to fit the stock aluminum rim like it is in the tire above? I thought the Rim was 8 inches and it looks like they recommend 8.5 to 10.
Why is the 315 rated as a D tire instead of E, it looks like it has the same 3195 # rateing though at a different pressure.

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LT265/70R17/E 121R RWL 55086 7 - 8.5 10.7 on 8 31.8 16 654 3195@80



LT315/70R17/D 121R BSW 54142 8.5 - 10 12 on 8.5 34.5 17 601 3195@50

 

dont forget to check the speed differential from tire size to tire size.

http://www.miata.net/garage/tirecalc.html

 

I had that size a while back, and it did scrub. I went down to a 305, and it fits just fine. The Nittos come in a E load for that size.And they last over 20K miles, and a better price. Justkeep them pump up tight.I have had 2 sets of them, my drive out price was just over $800. Not bad for E load range tires.

 

6.5x16" steel wheels.
[ul][*]LT255/85R16D fits the stock rim, 33+" tall, spare fits in frame, 3000 Pound capacity.[*]33-11.50-16 thornbirds on stock rim [/ul]
8x16" Forged Aluminum heels
[ul][*]LT295/75R16 on stock rim 33.5" tall - no rub[*]315/75R16 on stock rim and it only rub lightly at full lock. [/ul]
Aftermarket Wheels and/or lifts:
[ul][*]LT285/75R16D fits with aftermarket rim, 33" tall.no lift needed.[*]33/12.50-16.5 - no problems[*]35/12.50-16.5 - Tires rub plastic inner fender when the steering is locked.[*]305/70R16 - Light rubbing at full lock of the wheel.[*]305/85R16 - ( 36" tall, 10.5" wide) with just a front leveling kit[/ul]

 

Tire Size Calculator

http://www.miata.net/garage/tirecalc.html

 

2001 Dodge Ram 3/4ton 4x4 with 4.5" Skyjacker lift.
I have run 325x65x18 Mickeys with American Racing Mojave 18x9.5 and 4.5" backspacing with no rub.
I now run 315x75x16 Nitto Dune Grapplers on stock rims with slight rub at full lock.

Thanks

Jason R