I'm looking for opinions, experience, wisdom on something. I've been using load C rated LT tires on my '06 Xterrra for several years. Looking back now, I'm wondering if those were a contributing factor in some problems I've had. My front wheel bearing hubs were shot at ~70K miles. Also, even after I had the Nissan dealer do a service bulletin repair of my rear wheel seals (NTB10-008), the seals have failed again after ~12K more miles.
I know the LT tires are heavier than the stock tires, by quite a bit, relatively speaking. Aside from the poorer gas mileage though, I didn't necessarily expect them to be so much harder on the driveline that they'd wear out/break things sooner. Or do you think that is just coincidence? It was even the dealer that I had mount the LT tires, and all they said was that they looked really great... Funny, huh?
You can run 33s fine with stock configuration.
It has not been confirmed that it blows anything. Tons of us run 33s on the 2nd gens and never have issues.
Also the 2006 version of the Pro-4X is the Offroad model.
C rated means nothing in this regard, nor does it being an LT vs metric sized tire. IE: A metric tire would have to be higher rated in strength to be an acceptable substitute anyway. C Rating is low, and most use D, or even E.
A taller tire (Larger diameter) puts incrementally more stress on components, but, as your truck came with 32" tires, and you probably don't have much larger than that from your description, your worries about added wear breaking things in this context is something you can stop worrying about.
Ok, I didn't mean to be so vague when I described the tires I'm talking about.
They are, Goodyear Wrangler Duratrac's, type 112/109Q OWL. The size is 265/75-16. They are listed as being 30.5" in diameter, 45lbs. in weight.
The stock tires were B. F. Goodrich Rugged Trail T/A's, which weigh 40lbs. each.
Now that I'm looking at the actual specs, it doesn't seem like we're talking about a meaningful difference - just 5lbs. I just remember when I got the Duratrac's they seemed really heavy. And so when I was trying to figure out why I've had bearing and seal failures on all four corners, I wondered whether or not I had contributed to them by using the somewhat excessive looking and heavier LT tires, instead of ones comparable to the OEM ones.
Ok, I didn't mean to be so vague when I described the tires I'm talking about.
They are, Goodyear Wrangler Duratrac's, type 112/109Q OWL. The size is 265/75-16. They are listed as being 30.5" in diameter, 45lbs. in weight.
The stock tires were B. F. Goodrich Rugged Trail T/A's, which weigh 40lbs. each.
Now that I'm looking at the actual specs, it doesn't seem like we're talking about a meaningful difference - just 5lbs. I just remember when I got the Duratrac's they seemed really heavy. And so when I was trying to figure out why I've had bearing and seal failures on all four corners, I wondered whether or not I had contributed to them by using the somewhat excessive looking and heavier LT tires, instead of ones comparable to the OEM ones.
Yeah, as a friend of mine was fond of saying...you're putting diapers on flies.
As far as your failures at all four corners...it wasn't the tires...but, SOMETHING was obviously wrong. It could be related to issues such as poor or insufficient diff lubes were used, the corners were subjected to impacts/stress such as sliding into curbs or being overloaded with cargo, poor installation, too little backspacing on rims, or just plain bad luck/coincidence.
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