Hi all,
I have been dealing for a while with a bad vibration at around 70 and up mph. The vibration seems cyclic because sometimes it runs smoother than others I even noticed that sometimes when going down hill itstarts vibrating suddenly and intermintently like: Smooth....prrrrt......prrrrt.....prrrrt...prrrrrrrrrrrrrrrrrt!!!!!
I did the press and release clutch test while running and the vibration changes just a little bit and when speed up and put the tranny in neutral still vibrating very bad. Going troubleshooting this problem I did the following: NEW TIRES BALANCED, NEW WHEEL BEARINGS, NEW FORD RACING 3.55 GEARS AND ALL NEW REAR END BEARINGS, STRAIGHT REAR AXLES, NEW U-JOINTS, STOCK BALANCED DRIVE SHAFT, CORRECT PINION ANGLE....WHAT ELSE??????
So from the yoke back is either new or balanced, I notice some in my opinion excessive lateral play on the yoke which coud be a bad yoke or output shaft but they told me at a transmission shop is not that bad....??
I can feel the vibration on my shifter/console area but also on the rear. the flywheel is a new FRPP cast and was balanced bufore I installed it. So basically the only things left to check are the clutch assembly (which is new) and the transmission itself. I noticed that the transmission makes a weird bumping noise when in idle and when the RPM's are on the low side.
What do you guys think? Please post your comments or ideas because I'm getting really frustrated as I have none or very little improvements after all the repairs I've been done.
Nick
I have been dealing for a while with a bad vibration at around 70 and up mph. The vibration seems cyclic because sometimes it runs smoother than others I even noticed that sometimes when going down hill itstarts vibrating suddenly and intermintently like: Smooth....prrrrt......prrrrt.....prrrrt...prrrrrrrrrrrrrrrrrt!!!!!
I did the press and release clutch test while running and the vibration changes just a little bit and when speed up and put the tranny in neutral still vibrating very bad. Going troubleshooting this problem I did the following: NEW TIRES BALANCED, NEW WHEEL BEARINGS, NEW FORD RACING 3.55 GEARS AND ALL NEW REAR END BEARINGS, STRAIGHT REAR AXLES, NEW U-JOINTS, STOCK BALANCED DRIVE SHAFT, CORRECT PINION ANGLE....WHAT ELSE??????
So from the yoke back is either new or balanced, I notice some in my opinion excessive lateral play on the yoke which coud be a bad yoke or output shaft but they told me at a transmission shop is not that bad....??
I can feel the vibration on my shifter/console area but also on the rear. the flywheel is a new FRPP cast and was balanced bufore I installed it. So basically the only things left to check are the clutch assembly (which is new) and the transmission itself. I noticed that the transmission makes a weird bumping noise when in idle and when the RPM's are on the low side.
What do you guys think? Please post your comments or ideas because I'm getting really frustrated as I have none or very little improvements after all the repairs I've been done.
Nick