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I wasn't referring to highway gears and eco hubs together, just that with stock gearing you really aren't able to drive fast enough for the tires balance/roundness to be an issue.

I wasn't implying it had anything to do with the gearing or hubs, just that with stock gearing you aren't able to drive fast enough for it to become an issue.

Since I now have about 3200 miles behind the wheel in an ECO Hub equipped truck, and drove in all kinds of conditions on my journey from Maryland to California, I thought I would post my thoughts. Keep in mind that these thoughts are coming from someone who only had about 4 miles behind the...

FYI, a C7 with 260 amp alternator uses Gates K080806 for the serpentine belt. It wasn’t in the part # thread.

I know the AC compressor has it’s own V belt, that’s new on my truck. I was asking about the serpentine belt. Already picked up a new one.

You can ignore that last post, found the belt part#.

Do you by chance have the serpentine belt part # handy for the A1R with the higher amperage alternator? The seller bought a belt based on the parts manual and it was too short, he suspects the higher amp alternator is the cause. Looks like the belt # is no longer visible on my belt. As long as...

I didn't see any sign of a crack, but will further inspect the area, and will check the bolts at the hydraulic pump and air compressor to make sure they are tight. Thanks for the heads up.

GD, I understand, believe me, I'm just hoping to get this under control for now so I can address some other things that need to be done before continuing to drive the truck. I'm trying get the final stages of divorce done, and will be moving into a new home shortly and would like to have the...

Yes, it looks like that in the photo, but after cleaning it up and reinstalling the bolt and running it for 30 minutes, you could clearly see that it’s leaking between the bracket and the timing cover, not between the timing cover and the timing case, and I hope it stays that way because...

Okay, spent more time than I care to admit trying to sort out this oil leak this evening. For context, this leak started after the bracket for the AC compressor was installed. This is the same bracket Acela uses, they buy them from the guy I bought the truck from. When I pulled the bolt that was...

Okay, R.E. the leaking bolt issue, seems this product might be the thing to use since it's designed to seal threads. Thoughts?

Made it home earlier this evening, Total miles for the trip was around 3200 with zero mechanical issues. Now to start working on the little niggles to get them sorted out.

Sorry I haven’t been posting, been pulling long miles. Day before yesterday was 710 miles. Been averaging 9-10 mpg hand calculated. In Green River Utah, headed for Austin Nevada today then home tomorrow. Truck has been running like. Swiss watch mechanically, but definitely some little niggles to...

No air suspension on the cab on A1R’s.

Thanks. Kind of reluctant to spray brake clean in a hole that goes into an oil passage. Pretty sure I watched a video on C7 issues and these bolts on the front being chronic leakers was mentioned, could be wrong though.

Highway pressure is set to 65psi. I understand the forces at work, relative to the pressure, the right thing to do is chalk the tires and adjust the pressure so the trade wear is as even as possible across the tread. Which I will do once home. We’re two days behind schedule already and I need to...

I have an IR thermometer with me. One front tire felt warmer to the touch, but I didn’t check it with the thermometer.

Planning to pickup a cheap GoPro copy somewhere on the road and put it under the truck to see if we can figure out what tires are the issue. Also wondering if maybe the rubber bead locks weren’t centered up in the tire prior to bolting the rims together and there too much weight off set for the...

Well, we’re on the road, landed in Morgantown West Virginia. Truck is purring like a kitten. Only bummers are that one of the bolts for the AC compressor mount apparently goes into an oil passage in the block and is leaking and making a mess, and my high budget aluminum wheel setup has serious...