My old truck was like this too...When I get up to 70mph, at least that's what the speedo says, the truck gets a lil shake to it that disappears around 75mph. My old fx4 did that same exact thing and felt the same way. Anything to be concerned about?

 

mine does that sometimes too... i think its a wheel out of balance or something like that

 

mine does the same thing

 

All tires will vibrate at a certain speed. Remember, the wheels/tires are balanced on a spin balancer, at a specific speed, not all speeds...

 

Mine does it too, once at 40 and once at 55, kinda weird. After that it's all gravy though.

Stock it did it at about 80mph, went away at about 85/87

 

mine dose it tooo n i got a 4x2 rear wheel 03

 

Mine did that when I had the Yoko's on it. From about 45-65 it was an annoying vibration at different intensities. Never did it with the Firestones or Goodyears, and it went away when I changed to the Michelins. Some tires just ain't round.

 

yea mine fluctuate from different speeds depending on temp and such. mudders bring it out even more. i just get used to it.

 

geeze....i haven't had that problem with my BFG All Terrains.....i just ran home from indy running about 80 with no problem at all....

 

you also have TTB front end

I didnt have any issues with my MT/Rs until the Silver Lake Sand Dune incident and i popped a bead and bent a wheel on the back tire.

 

i have that problem my truck shakes and rattles and then i jump on it and it goes away

 

Like i have sayed before who cares there trucks your getting a free butt message...

 

This happened to mine for a while at 84 mph (yes 84, i had a 9-hours trip to figure it out exactly lol). But it hardly does it anymore. It's very minor compared to before.

 

hey mine did it also i had the yokohama Geolander ht/s 245/75 and it also did it and i had everything balanced witch helped a lil and aligned but it was still there. it even made my gf scared to drive in it lol it happened around 70-75 then it went away a lil.
but with my BF AT's its nice and smooth no more shaking.

 

mine doesnt shake but by golly its loud..no tips just muffler..and no cruise control SUCKS..just got back from ridin 720 round trip miles and the next thing im doin it tips