I own a 1994 F-150. With a 4.9 L or .300 cu in. inline 6 and a standard transmission (all stock). I am having a clunking, a squeaking and a clicking noise depending on what I am doing. The clunking usually occurs when I speed up quickly higher gears, the clicking when I speed up in low gears or when I torque it in low gears. The sqeaking or squealing when I gear down from 2-3 and 2-1. This may sound trivial to some and if it does that is good. I am not good at diagnosing but good at repairing. If anyone can offer any advice on what it may be I would appreciate the help.

Thank you for you time

 

I had a similar problem with my '93 (same setup as yours). It turned out to be the U-joints in the rear driveshaft. Naturally, I had continued to drive it while the problem got worse, and I now have a leaky front seal on the rear diff. Oops...

 

First you want to check all of your ujoints. You can do this by putting the truck on a flat surface, and blocking the tires. Set the parking brake and put the truck in neutral. (not running of course). now crawl under the truck and move the drive shaft up and down and try and turn back and forth, if you see any play replace the joint you see moving. check everyone and if you have a two piece drive shaft also check the support bearing.

Dave

 

>First you want to check all of
>your ujoints. You can do
>this by putting the truck on
>a flat surface, and blocking the
>tires. Set the parking brake
>and put the truck in neutral.
>(not running of course). now
>crawl under the truck and move
>the drive shaft up and down
>and try and turn back and
>forth, if you see any play
>replace the joint you see moving.
> check everyone and if you
>have a two piece drive shaft
>also check the support bearing.
>Dave
I did check it awhile back and there is some big time play in the rear when I turn it back and forth...I was told to do this before just was not exactly sure what to look for

Thanks for the help...saved me some cash....and pride!!!

And I can love my Ford again

 

also perhaps you should make sure the pinion seal is good and and you may need a new nut, i think its a pinion nut.

adam