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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

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Old 09-26-2007, 08:02 PM
wesw0000 wesw0000 is offline
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front end shakes!!

i have an 86 f-150 302 efi. when i get up to about 60 miles per hour, the front end shakes and makes a "thud" noise. i replaced the upper and lower ball joints because they were worn and i thought that might be the problem, but it still does it. it feels like your driving on a really rough road when it starts acting up. any suggestions would be helpful, thanks alot.
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Old 09-26-2007, 08:15 PM
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Front wheel bearings. Tires out of balance or out of round or sidewalls failing. Try swopping tires around or borrow some different ones from a buddy.
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Old 09-26-2007, 08:36 PM
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Hi, you may want to check the radius-arm bushings, if they are worn it can make some noise.
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Old 09-26-2007, 09:07 PM
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Quote:
Originally Posted by wesw0000
i have an 86 f-150 302 efi. when i get up to about 60 miles per hour, the front end shakes and makes a "thud" noise. i replaced the upper and lower ball joints because they were worn and i thought that might be the problem, but it still does it. it feels like your driving on a really rough road when it starts acting up. any suggestions would be helpful, thanks alot.

I doubt this could be your case but its an FYI, If a drive shaft has a bad U-joint or its not set in right it could do that. I had a friend who had the same issue. turns out he put the caps from the u joints on top of the tangs on the axle. Presto shakes at freeway speeds.
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Old 09-28-2007, 07:22 PM
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hi, i tried swapping tires still bad i replaced the wheel bearings about a month ago so theyre good. i took the tires off everything seems tight. the only thing i havent replaced is the tie rod ends but they seem ok no slack. im at a stand still, thanks so much.
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Old 09-28-2007, 08:01 PM
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Hi, I guess you checked the radius arm bushings, so check the shocks, make sure they are not "sticky/stuck" ,this can happen if they get bad or bent, check rotors and see that the calipers are releasing and make sure there is not a "chunk" missing. You would not believe some of the things I have seen happen to trucks. You have checked your ball joints and tie rods tires and wheels.This is a 2-wheel drive? Check the steering box, make sure it is solid as well as pitman arm is good shape. If I can think of some thing else I will add in with it. It is hard to say with out looking at it first hand.
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Old 09-28-2007, 09:10 PM
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I had something similar happen with an 82 F150 2wd...turned out to be the bolts holding the axle pivot bushings were worn and the bushings were slapping side to side.
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Old 10-01-2007, 02:41 PM
wesw0000 wesw0000 is offline
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well i replaced the inner and outer tie rod ends, and checked all the bushings that i could see, and still it shakes. im at a stopping point. ive spent too much on it. anyone wanna buy an 86 f-150 thats a great truck short of a few shakes and rattles? thanks for all the help guys.
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Old 10-01-2007, 02:41 PM
 
 
 
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