On my 1995 f-150 4x4 the rear u joint on the driveshaft needs to be replaced. but since i was down there i was going to do both of them.

i looked on youtube for an instructional video. the guys in the video i watched welded the new u joint in. do i need to do this or do i just put those clips back in?? im coming home from college in a few days and wanna replace it then, so thanks a ton for the help!

 

No you do not need to weld it. I have always just used a block of wood, two sockets, and a hammer. Get one socket just bigger then Universal. Set the driveshaft on the block of wood and the open socket toward the universal then use take a socket just slightly smaller then the universal to drive the universal out with the hammer.

 

I know of no replacement U joint that you would weld in the heat would kill it. are you sure they wernt welding a new yoke to the shaft prier to installing a U joint in it

 

Just the clips, no need to weld anything

 

No welding involved but i have used an oxy/acetylene torch to burn out the old ones.

The job is a lot easier if you can mount the drive shaft up in a pipe vise so that the work is right there in front of you.

 

im pretty sure it was the u joint they hit with the welder, the yoke was on the other end.

 

alright, thanks for the imput guys, so i suppose its easier to take the whole drive shaft off and work on it rather than replace them under the truck?? and do i need to mark anything to keep it all aligned??

 

Just to add my comment. No never weld a u joint. It will ruin the temper on the bearings and over heat the grease which will likely catch fire. Second, a u joint is designed to be a wear part. If you weld it in you will have to build a new driveshaft nest time it wears out. And third there is a yoke at both ends on most drive shafts. Last mark the shaft so the yokes go back in the same alignment. It will keep it balanced.

 

alright guys thanks alot, another quick question, what is a good kind of 02 sensor to get?

 

Motorcraft or Bosch will be good replacements.