04 250 clunk on take off

[nasty6.6]

I have a clunk on take offs, immediately after letting off the brake and getting going. I think it has something to do with the slip yoke on the rear drive shaft. Does anyone know what to put on this to help? U joints are all tight as well.

Thanks in advance.

 

[HOOV3R]

Is there any play in the yoke when spinning it? You can pull it apart and inspect it, if the blue nylon coating is coming off it will need repaired.

 

[Trqmnstr]

Grease the yoke and output shaft.
Probly will need to pull the drive shaft to grease the yoke good, i havent looked yet but i have the same clunk and need to fix it.

 

[drunk on diesel]

sometimes you can just unbolt from the rear diff, slide the driveshaft in and out a couple times and bolt it back up, and it'll spread the grease in the slip yoke around

 

[nasty6.6]

thanks for the info I will try this weekend and let you know what works!

Driving the truck today I had a loss of power and lots of white smoke so it looks like I have a weekend full of time with the truck... I hadnt deleted yet so looks like i will be doing that as well