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Old 09-10-2013, 04:23 PM   #1
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I know tires are done to death but......

I would like to upgrade my tyres (UK spelling) to the 275/70/18 ST maxx which come in at about 60lbs against the 40 lb for the stock dueller.

I have a 2013 2.8 diesel (420nm (300+ lbft) of torque), the 5 spd auto and 3.21 diffs. The Jeep is a 50 mile DD.

How much difference is that 20lb per corner really going to make?

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Old 09-10-2013, 06:36 PM   #2
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Those are what, roughly 33" tires? That is an additional 80LBS of unsprung weight and is a lot, however the fact that you have a manual transmission and a diesel with that much torque, it wouldn't greatly affect it. If you jumped up to 35's maybe.

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Old 09-11-2013, 01:08 AM   #3
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The ST maxx seems to come up slightly large, i believe they are 33.5".
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Old 10-06-2013, 08:08 PM   #4
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33.4" x 11.2" according to cooper website
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Old 10-06-2013, 10:45 PM   #5
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You will still be able to turn your drivetrain without issue due to the diesel torque, but the big increase in unstrung weight may affect your ride, handling, and off-road capabibilities, not to mention extra wear on the suspension parts and wheel bearings.
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Old 10-06-2013, 10:46 PM   #6
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Unsprung. Dang autocorrect. Sorry.
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Old 10-07-2013, 05:42 AM   #7
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Made the jump, 265/70/18 Cooper AT3s. I was concerned about the extra 20lb per wheel for a DD.

The tyres are excellent, bags of grip on and off road, no noise and look more aggressive than the pictures show.
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Old 10-20-2013, 07:30 AM   #8
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could you post some pics? I am trying to decide on wheels and tires to get my JK out of diapers!

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