Seeing some unusual wear patterns on this steer tire

Hard to say since they were on the truck when I bought it. About 100k now since since I’ve been driving it since last March. They were put on in July 2024 so 7 or 8 months prior to that and I don’t know how much the truck moved in that time.

I’d be happy if I could figure out which one is causing the trouble and throw it out for an FS591 Firestone because that other one could go a long time longer. I’m guessing it’s probably the one that’s now on the driver’s side judging by what it looks like compared to the other one, which still basically looks like a new tire. Must be a 3 axle alignment issue that trashed it and possibly front shocks didn’t help.

 

That’s what’s going on I guess. In a “low wear” application the tire will go bad and start causing driveabilty issues on a steer axle long before the tread is gone. Question is what to do about them. Those are like $800 steer tires so throwing them away after one tread run seems like a huge waste. They should at least give me something for the casings right? I’ve thought about putting them on a drive position but if they will cause shuddering and vibration back there I wouldn’t want that. Don’t have a trailer to put them on.

Did put some new shocks on the front the other day. Probably will do a pair of the Firestones. Looks like they have a 591 and a 592 now. Anybody try the 592’s?

 

The R213 Ecopia is the top Bridgestone steer tire, so it will likely become the Firestone “FS593” at some point I would assume. Interestingly they still list and sell the 591 even though the 592 supersedes it. Lots of places I’ve called have 591s in stock…$550-600 is the price per tire I’m getting quoted but I don’t have any tire discounts. Pomp’s in Eau Claire, WI had the better price. X-line Energy Z is like $850-900 per so that’s a little salty for a pair. You could buy 3 of the #### Firestone’s lol.

I might single out the forward drive axle with the Bridgestones on the outer aluminum wheels as I don’t really need the weight capacity. Those off brand Thailand drives the truck came with have quite a bit left on them but I’d let the tire shop have them and the inner steel wheels if they’d do the labor on that. If they won’t do it (some shops won’t) I’m not letting them have them for a $45 casing credit. Aft drive axle id run the 4 other Thailand drives till they were done and maybe ditch all of it and switch that one back to a 445/50 wide base single like the truck originally came with.

my hunch is the alignment probably isn’t that far out, but I’m going to wait on that till I get all the rear torque rod bushings done in a month or two, then maybe have an alignment shop look at it. Kingpins have been done recently (July 2024), but at some point it will probably get new front springs, spring hangers, tie rod ends. Don’t know the repair history on that stuff. Hubs and wheels bearings seemed fine when I spun them by hand a couple weeks ago when the wheels were off. The front u-bolts need another re-torque…can hear it pop and clunk a little when it’s wet out and you pitch the front end into a corner a little too fast.