Question about Ford F-100

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MY TRUCK SHAKES UNDER ENGINE LOAD. THE MOTOR MOUNTS ARE GOOD. I WAS WONDERING IF I NEEDED A CARRRIER BEARING. ITS A 1980 FORD F100 WITH THE 351 WINDSOR AND 3 SPEED AUTO. AND WHAT SIZE DO I NEED THE 35MM OR THE 40MM. OR AM I JUST GOINT TO HAVE TO TAKE IT DOWN TO MEASURE IT.

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Check the driveshaft u-joints also. They will cause a solid vibration when under acceleration load and go away when coasting. As for that carrier beariing, its best to lefdt a shop that balances driveshafts handle that so thatthey can rebalnce the shaft after the repairs are done.

Posted on Jul 20, 2009

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Posted on Jan 02, 2017

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I need help badly.


Good Day,

The shaking can be caused by a bad motor mount, but could also be caused from the engine when it is idle'ing low and about to stall. The motor mount would also shake the car under braking, so if is doesn't shake whiIe your braking it's probably not motor mount, Is your check engine light? The idle air is another possibilty among other things. I can assist further but I need to know which engine you have the 4 cyl 2.0L or 6.0 cyl 2.5L?

Let me know about the check engine light aswell.

Hope this helps

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