Join Date: Dec 2006
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The biggest factors that effect tire wear are rotation habits, air pressure, and suspension component conditions...with the 1st two being the most commonly over looked. While the tires on your truck say 80, you certainly don't want to run that high of a PSI in the rear. A DRW truck spreads the weight on it's rear end over 4 tires instead of 2. Lets say you run 60 in the rears on your SRW truck, well you can run about 30 in the rears on your DRW truck. As far as rotation, you want to make sure to rotate your tires about every 5 - 7.5k. If you follow both of those rules, and keep the suspension components in good working condition, than a set of tires should last you a long time.
On my truck I run 80 in the front, 35 in the rear (unloaded), and I rotate the tires every 7.5k. So far I have 55k on my OEM Ameritracs and can easily get another 5k out of them. Though, once I get some money in the next few months I'll be getting them replaced as they are pretty far down. 55k miles is good for a set of tires in my book.
06' 3500 RegCab, Auto, 4x4, 4.10's
92' W250 ExtCab, Auto, 4X4, 3.55's