Wierd drive tonight...

[AMassaro]

Hey guys, was wanting to get some opinions on a situation I just had with my truck tonight. I was driving to work, normal route. I hit 60mph and the truck just felt different. By 65mph the whole truck was vibrating. Felt like I might be getting a flat tire. Slowed down to 55 and it was smooth as silk... ? Slowly started to accelerate again and at somewhere like 60-65mph it was there again. Not violent like those with death wobble have described. Just shaky and vibrations like going over a rough grooved surface too fast. So I got off the highway asap. Pulled off into a well lighted parking lot and checked everything out. All seemed fine. Now I'm scratching my head. So I get back on the highway and it's gone. Rides fine at any speed, smooth as normal. The only thing I can think of is I ran over a speed bump a little too fast (maybe 25mph) because I didn't see it, so could this have thrown something off for a short time? At first I thought flat tire, obviously not, then slight death wobble, though I have dual fox steering stabilizers with my KORE setup. I thought maybe tire out of balance, but now that it's fine again, what should I do or look for? Tires are Nitto Terra Grapplers 285's with maybe 10k on them and usually run 70psi all around but haven't check pressure in probably 3 months (my fault)... Ball joints going south? Driveshaft u-joints? Any ideas appreciated... . Thanks.

 

[HOBrian]

Sounds like you may have had something sticking to the tire to throw them off balance. I had the same thing happen once when I had an ice chunk stuck to the rim.

 

[ccie]

Often mud or snow can get stuck to the inside of tires causing something like this.

 

[DonSimpson]

I'm having about the same problem with my '01 2500, I can be driving everything smooth as silk and hit a bump and vibration from under the truck and then hit another bump and vibration stops and rides smooth as silk again. Ive replaced the ball joints, front bearings and steering stablizer and it still happens. I've got a post on this, sorry no answers but if I get any replies that might help you I'll pass em on.

 

[cahammer]

anyone check your carrier bearing?

 

[Mobius1]

Sometimes you can hit a bump in the road, A belt will shift in a tire, throwing them off balance therefore causing a vibration. Sometimes it works itself out. Sometimes you hit a bump and it does back to normal. I had this happen on my blazer from time to time.

 

[JHedman]

Check the drive shaft U-Joints and, if you have an auto, the carrier bearing. I just replaced mine at 90k. One of them was nothing but powder inside. .