Newly49

Thought this was weird and worth sharing. My truck is actually doing OK now that I got 2 new tires that replaced 2 w/ RFB issues. But yesterday I was towing an empty single jetski trailer that must have had a serious out of balance or warped/old tire. Anything above 60 mph brought on a heavy shake in my truck. What was weird about it was that the shake was in the steering column/shifter. Bad. Nothing really noticeable in the seat or center console. Not sure I understand how towing a trailer (w/factory hitch receiver) would bring on a shake more towards the front of the truck.

Sorry for the delay. Discount Tire was able to warranty the 2 tires that were .33 and .34 out on the RFB. Even after owning them a year and putting about 8000 miles on them. However, during that time they had RFB'd them 3 times, dealer 1 time and both the dealer and Discount Tire had the same 2 tires as being the possible culprit. I'm back to having a normal truck. Well, a very tolerable truck. I can still sense it. Stock 20" rims, Nitto G2 305/50/20 tires.

Woops. I edited my post above. No real improvement, but the pulsing aspect of the shaking was eliminated after my visit to Discount Tire. Vibes are back and more constant.

I'm one who had some success w/truing the axle flanges a few months ago. Shaking badly again and it's kind of odd how it started again. Heading back to Phoenix from Lake Mead (Vegas) and stopped to get gas in Kingman. Driving fine before the stop, aggressive shaking afterwards. in fact, it was pulsating through the steering wheel, similar to what Red October sounded like to Jonesy before he sped up the tape to 10X speed. Vibrating on, vibrating off, etc. Wheels balanced and road forced again at Discount tire. 3 wheels 3/4 oz out, 1 was just 1/4 oz. Road force on the rear tires were dang near perfect, but front 2 were .33 and .34 out. I'm not sure if this means inches...they didn't give me a lb reading. Anyone have insight? They said that they don't consider a tire "bad" until .50. I'll have a more detailed conversation w/them once I have more time. Edit: The only improvement made was the pulsing got eliminated. Shaking still there.

My '14 GMC isn't that bad and very intermittent, but I did go at the axle flanges over the weekend. They weren't that far off. I also noticed that both rims were gouged on the inside by slamming them on the studs during install(s). I ground down the high side of these gouges on the inside of the rims to make sure they mated to the flanges as perfectly as I could get them. I first thought the work I did wouldn't be noticeable. Those flanges are hardly a precise piece of metal (thickness and diameter) and I forgot how heavy the rim/tire are. A few grams of removed material is going to be noticeable?? After driving the truck this morning, my time and effort were worth it. Cold mornings after the truck has been sitting a few days brings out the worst of it for the first 10 minutes of driving and those are the conditions I had this morning. The first 10 minutes the vibes were barely noticeable, and it was perfectly smooth after that. If vibes come back, I'll see if swapping the spare tire with each of the rear wheels changes anything. Also thought about indexing each rear tire on the studs to see if that changes anything. '14 GMC Sierra Crew Cab 4X2, stock suspension, stock 20" rims and 305/50/20 Nitto G2's. Road forced by dealership (bad) and 2 different Discount Tires when I bought the tires 3k miles ago. I think the tires/rims are as balanced as they can be.