??? about 315's

840 Views 6 Replies 3 Participants Last post by t22a80, Oct 30, 2007

t22a80

Discussion Starter · Oct 30, 2007

Hey guys,

I know a lot of you have put on 315's or 35's on your trucks. I was curious what effect it had on mileage and how your difffs / transmission seem to be holding up. I havent really heard of any problems but I just wanted to ask anyway.

I have an 05 4x4 OR with the PRG leveling kit in it. I know that some of you have been able to add 315's on the stock OR wheels without any problems, or the pinch weld mod seems to help if you do.

Is there anything else I should be concerned about?

Thanks guys!

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DRTYAZN

· #2 · Oct 30, 2007 (Edited)

well, my own experience with 35"s, first choice after lifting mine (PC 6" lift), was that it looked awesome and so beefy... I was happy with them but I noticed that the gas mileage really took a hit... takes quite a bit of power to turn them 35's, (590 revolutions / mile) gas mileage sucked... 8-10 in town, 10-12 tops on highway, and towing was lucky to average 6-8... rubbing was an issue, inside rear corner of wheel well and front corners of bumper covers when in full turn, pinch weld, small grinding, and rubbing issues were solved...
I have since driven those to the end of their tread life and decided to get Nitto Terra Grapplers in 305/70R17's, which is about 34" tires (33.98" per Nitto)... I have found that my mileage has improved (610 revos / mile), and the power feels soooo much better, with NO, absolutely no rubbing issues whatsoever... with a only a one inch difference in ht., it still looks great, no rubbing issues, and has given back performance... I just don't think I will go back to 35's...

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t22a80

Discussion Starter · #3 · Oct 30, 2007

What 35's did you have. I read that the BFG AT-KO's are really more like 34.5 and thats why some guys can get away with only a leveling kit on the stock 7.5" wide rims.

I have the terra grapplers on my 20" Moto Metal-954's that I will be taking off for the winter. We get a lot of snow here so I need something better in the snow. I got caught in a light snow this spring with those and I wasnt impressed.

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jasonmotox

· #4 · Oct 30, 2007

about the same as DRTYAZN when it comes to milege and rubbing issues. Personally I wont go with the Mud Grapplers again unless I just have extra cash to keep them in the gargae until hunting season starts. These tires are pretty heavy. I started a thread a while back, wondering if anybody had any diff problems because of the their 35's, all the responses were good. here it is >> http://www.titantalk.com/forums/tit...cations/58302-35-tires-anybody-blow-diff.html

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t22a80

Discussion Starter · #5 · Oct 30, 2007

I love the look of the mud tires, but these are for winter use mostly and I know that they arent too great for that.

What kind of mileage were you guys getting before the tires?? I average 14 with my 20's but I think that might be a little off because the tires are slightly smaller than the factory 285's.

I'm headed up to Maine in a couple weeks for deer season so I gotta get some before then. I'd love to do a lift too but that might have to wait till next year. That is another reason I didnt want to do 285's because if I get a lift I'll want 35's.

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DRTYAZN

· #6 · Oct 30, 2007

t22a80 said:
What 35's did you have. I read that the BFG AT-KO's are really more like 34.5 and thats why some guys can get away with only a leveling kit on the stock 7.5" wide rims.

I have the terra grapplers on my 20" Moto Metal-954's that I will be taking off for the winter. We get a lot of snow here so I need something better in the snow. I got caught in a light snow this spring with those and I wasnt impressed.

I ran PC A/T's 35X12.50 R 17 on Helo Maxx 6's (17X9), with a 5" backspacing... gives me an added 1 1/2 - 2 inch wider stance. Those ran very well for over 30k miles, 2 of the 4 were down to flat on the center tread, the other two had just enuff to keep them as spares. If I was to buy PC's again, I'd get the Extreme A/T's... as for winter tires, I can't say I run into too much snow in CA, but when I do, I usually chain up since CalTrans and CHP are sitting at that level to enforce the chain usage...

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t22a80

Discussion Starter · #7 · Oct 30, 2007

I like the look of the wider stance but I know that can be an issue for rubbing... I was also looking at the PC AT becaue they have the snow rating and are supposed to be good for 50K. I just had really good luck with the BFG KO's in the past.

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