im new to f150forum.com and i just recently bought a lifted 93 f150 and the other night i was pullen out and all of a sudden there was a loud repeated clunk comen from the rear end so i got it to where i can park it and the next morning looked at it and when i pulled away you could see the whole rear end move a good inch or so and go back into place and did that repeatedly i checked the u-joints and they are fine...nothen that i could see looked bad...and today i showed my dad and as soon as i put it in gear the whole rear end did the same big rough clunk...its kinda hard to explain but if anyone can help me out anything helps thanks i need back on road asap

 

the rear end is bad, my 95 did that, then it made it a half a mile like that and the rear end blew, I had to use 4x4 to get it off the road.

 

The rear end where the driveshaft connects went up and down of the whole rear end moved back and forth in its mounting to the springs?

 

thanks so wat do i have to do to fix this problem and about how much will it cost

 

Depends on if it is the spring hangers, the u-bolts, broken springs, or the axle itself. The spring hangers, U-bolts, and springs are fairly easy to replace, the axle housing is simple but will cost more.