Well I'll bring all this up the the guys at the dealership next trip in. I'd never really thought about the exhaust system or a trailer hitch vibrating enough to feel it on a 7400# truck.Thanks fellas:beer:

Happens sometimes, usually when the truck kicks itself up to the high idle, not when I throw the upfitter switch wired to the high idle.A_G, yeah, I'm figuring it's nothing major that's wrong, just figured I'd check in and see if I was missing another major problem on the 6.0

Bone stock 6.0.I was worried about the EGR because I lived in Colorado awhile, and it used to idle a LOT in the winter, probably a half hour idling to an hour of driving some days. Never had lots of blowby in the oil thought, but I'd heard lots of stuff about sooting in the exhaust side of...

Yes, only when engine is cold, either sitting over night , or after being shut down a few hours during the winter.Yeah, I thought about the tires too, but I've had them rotated 3 times, and it never changes or feels like it moves. I thought it was a u-joint on the d-shaft for awhile, but...

So I've had a weird vibration since I've owned the truck (has 25k, I'm the 1st owner), and I think I've got it kind of nailed down. On a cold start, for the first 10 miles or so down the highway I'll get a vibrating sensation, usually just in the pedals but occasionally enough for a passenger...

I'll give the X2 to Powerservice. Grey in summer, white in the winter for the anti-gelling. I can actually notice a difference in the pull over straight pump-diesel vs. treated fuel, probably the additive getting the crappy winter-blends cetane rating up.

you know how it goes out here. Burritos at Josies, beers at Crickets, midnight run to the Town and Country, pretty normal night in Lubbock

Yeah, my n00blet mistake on this site. Post up the fingers, I'll take the beating, then we can move on :D

Howdy Bob. There seems to be a disproportionate amount of Texans around here...

Sweet. This place looked dead, I was worried that nothing was going on around here

Well since no one's said anything since December... anybody alive with a SD?