ok i'm looking for new tires cant deceide between 285 70 17 or 315 70 17 BFG. Just looking for any pros or cons either way. I like the look of th 315's but tow lots and think if i add a 2" level kit when towing back end is gonna sag. What do you guys think will work best?

 

I've never run 315's before but I have 285's and really like them. There not bfg's but as far as size wise i really like mine. Don't rub any and don't set down bad towing.

 

when I bought my truck it had bfg 285 70 17 on it and the set on there now are the bfg 315s. If your set on bfgs go with the 285 if your staying stock height and 315s if you level it out. the 315s rub my upper and lower control arms a little with the stock steelies. If your open for suggestions try the Toyo Open Country AT in a 285 75 17 it is a load range E and Nitto Dura Grappler 285 70 17 also a load range E. these two tires I will probably buy next just need to decide which.

Oh, got an email from Nitto, said the Dura grapplers will be out end of this month.

 

well i have run 315's since i bought my truck back in July of 04 they have been great tires and i have over 80000km on them and they still have about 20% left .. i myself tow a 16" car trailer and 8-9 camper total combined weight of about 20000#'s they have worked great .. but i think next time i am gonna go back to a bfg E rated tired just for the piece of mind of having a little more heavy duty side wall the 315's do have a little bit of a sloppy side wall IMHO .. but i think my next tire will be a 295 e rated bfg all terrain

good luck
Gary

 

Since you have the G56, like me, I would get the 315's. It puts that crappy overdrive ratio in the right place when you are not towing. And when you are towing heavy, 5th is perfect.

 

so can you not get the BFG 315's in an e rating like you can with the 285's also has anyone added 2" lift front and rear

 

If you're talking about All Terraing TA KO's, the nD is the heaviest load rating they make in a 285/70-17.

http://www.bfgoodrichtires.com/specs...t-a-ko/44.html

I went with the 285's on stock wheels. Called BFG and they said that 305 would fit, but if I aired down in the dunes then it could pop off the bead.

I know a lot of people say that 305's are fine when aired-down, and they could very well be. But I didn't want to take the chance.

 

I have had 305 bighorns, 285 bfgs a/ts, 295 terra grapplers, and am now on 315 bfg a/ts.

so far my fav is the 315s b/c of my gear ratio. the 4.10s are bit low when not towing all the time, so the 315s help normal driving. they seem to wear faster than the others did. I dont know if thats me or what... but at any rate, the 315s look the best too. I think next time I buy, its gonna be Cooper ATRs in 315.

 

I love the 315 BFGs on hummer wheels - no rubs with stock height. Also, check the load ratings - the D rated 315's ride good, but still carry a decent amount of load (almost 3200 pounds each). With my box in tow mode I can tow my 10K 5th wheel in overdrive practically all of the time as long as I stay above around 60. I may try high tech retreads next time -

http://high-tec-retreading.com//Desk...240&tabindex=1.

They are built on the BFG core and cost $115 each!

 

I've run both 315s and 285s. The 315s came on my H2 wheels. They did not rub, had excellent traction and looked great.

But they cost a little in mileage, about 1-1.5 mpg. And they tended to steer the truck around a lot more than the stock 265s.

I decided to try a set of 285 BFGs on the same H2 wheels and they are very nice. I have used them in all situations from snow to dry highway to heavy towing and heavy loads in the bed, etc. Good all around compromise. I now have about 50,000 miles on this set and they are getting worn. I may get new ones before winter and all the mountain road trips.

They look good, drive well and the mileage is better with them compared to the 315s. They are also as quiet as they were in the beginning because of occasional rotation

I would like to find a similar tire with a load E rating, but the Ds have been fine and are rated to carry all that the truck can.

285s are a good choice if you are not looking for the most extreme size you can run but want good performance and something a little bigger than stock.

John

 

jmccart hit it right o the head.... i have ran both and wouldnt consider going smaller that 315 with 373's Its all about how you drive it.....

 

Just get a set of both, I've got one set for towing (305/65-17's E-rated...33" PC XAT's) and a set of 35's for everything else (35x12.5-17 DC MudCountry's) both on factory wheels

If you level it then put some weight in the back it sags bad IMO, I usually have 2000lbs in my box (sliptank and tools) so I added some airbags, ($300) with the 2k and 20psi in the bags everything sits level again, when I add my trailer to the equation 25psi is perfect...just for kicks when I first installed the bags I set them at 50psi (100psimax) and that gave the rear of my truck (empty) 5"s (42"s to 47"s at the bottom of the rear fender flare) of lift...

 

I’d do the 315s again. Mostly because I can get a full set for around $600 from a Hummer dealer. Actually the last set I bought was $600 and then I sold the H2 wheels on eBay for a couple hundred.

That being said, if I could get a set of 285s for that price that’s what I would run. I’d like to get my mileage back up when I drive around town.

 

I don't know why everyone gets so hung up on the "E" rated tires. What really matters is the load rating. A 315 may not have an "E" on the side of it, but look at the actual numbers. It has just as big a load rating as a 265 or 285 with the "E" rating.

 

how bad of a gas mileage hit is there going to a 285 from a 265? and how much bigger is the 285/70 r17 than the 265/70 r17?