Replacing P series with LT on a 1500 Sierra
My 1500 series Sierra came with P265-65-R18 from the factory. The tires have been OK, but I've always found that when loaded (even with the WDH) the steering is a bit loose. In speaking with others ...
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It sounds like I'm in the minority. But I've switched to LTs twice on 1/2 ton vehicles and not seen a huge improvement.
Disclaimer -- I towed lots of miles on P's with my '05 Suburban, switched to LTs and only towed a few times before buying my 2500 pickup. And with my F150, I only towed on the stock P's a couple times before putting the current LT's on (Michelin LTX M/s2), as the stock Goodyears were pretty worn when I bought the truck this spring.
But I towed at 44 psi or so on my P's, and about 55 psi with the LTs. I can't say I see a big difference. The mpgs on my F150 have dropped off by 5-10% since switching to LTs, however, since they are a bit heavier.
Disclaimer -- I towed lots of miles on P's with my '05 Suburban, switched to LTs and only towed a few times before buying my 2500 pickup. And with my F150, I only towed on the stock P's a couple times before putting the current LT's on (Michelin LTX M/s2), as the stock Goodyears were pretty worn when I bought the truck this spring.
But I towed at 44 psi or so on my P's, and about 55 psi with the LTs. I can't say I see a big difference. The mpgs on my F150 have dropped off by 5-10% since switching to LTs, however, since they are a bit heavier.
