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thomas1119
Novice
May 4, 2010, 7:06 PM
Post #1 of 5
(1373 views)
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i have a 1994 ford f150 it has a big vibration right before it shifts into a higher gear and a little when it shifts down it is weird itll start at about 30mph can someone please help me it has new u-joints
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Sidom
Veteran
/ Moderator
May 4, 2010, 10:54 PM
Post #2 of 5
(1365 views)
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If you have a 2 piece driveline make sure the carrier bearing assembly is good.... Did it have the vibration before the u-joints??
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thomas1119
Novice
May 5, 2010, 4:25 PM
Post #3 of 5
(1361 views)
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it only has one shaft and i was told it had new u-joints but now I'm not sure i looked at them and they looked old i just bought the truck about 1 month ago and the person i got it from said it had new u-joint but not sure any more so could it be anything else besides them??? and it does have all the weights on the shaft still i checked that out..
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Loren Champlain Sr
Veteran
/ Moderator
May 5, 2010, 4:29 PM
Post #4 of 5
(1359 views)
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Thomas; Can you duplicate the vibration with engine speed while in neutral or park? If so, check harmonic balancer and flex plate. Loren SW Washington
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thomas1119
Novice
May 5, 2010, 4:34 PM
Post #5 of 5
(1358 views)
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it only vibrates when going down the road in gear
(This post was edited by thomas1119 on May 6, 2010, 10:41 AM)
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