Vibration At Highway Speeds
11-15-2016, 09:33 AM
#1
VLARIAT
Thread Starter
Vibration At Highway Speeds
Good Morning
Just wondering if anyone knows of a TSB or sorts regarding drive train vibration. At speeds up to 75mph my truck rides very smooth, once you get to 80 to 85 I get a vibration about 85% of the time. It can occur when accelerating to pass and sometimes when it's not vibrating above 80, when I decelerate it vibrates until I get below 80. It's hard to tell front or rear, I think it's the drive shaft.
I do a lot of highway so I'm often 80 to 85
Wheels have been road force balanced and wheel run out corrected
I am the original owner 2014 Lariat 3.5L ....63k miles
Just wondering if anyone knows of a TSB or sorts regarding drive train vibration. At speeds up to 75mph my truck rides very smooth, once you get to 80 to 85 I get a vibration about 85% of the time. It can occur when accelerating to pass and sometimes when it's not vibrating above 80, when I decelerate it vibrates until I get below 80. It's hard to tell front or rear, I think it's the drive shaft.
I do a lot of highway so I'm often 80 to 85
Wheels have been road force balanced and wheel run out corrected
I am the original owner 2014 Lariat 3.5L ....63k miles
Last edited by VMARAUDER; 11-15-2016 at 10:17 AM. Reason: Add info
11-15-2016, 10:19 AM
#2
Senior Member
There is a sticky at the top of this forum READ IT. Says 2011/12 but it covers all years. There is a drive shaft lube for the spline if you have a two piece driveshaft other than that nothing.
11-15-2016, 05:29 PM
#4
I had a vibration that wasn't always there but when it was it was always between 70 and 75mph, tires are new and road-forced, new struts and shocks, and new brakes. What cured my vibration was applying the Ford PTFE lube to the driveshaft splines of my one piece shaft and cleaning the thin film of rust build-up off the driveshaft flange and pinion flange.