Vibration-Then Roaring Vibration

[Rob]

how do i know if they are bad?? they seem real tight right now but maybe that is because they are installed. do i need to take them off to see if they are bad?

[craig long]

put the emergency brake on and put the truck in nuetral. this is the only way the slack from bad u joints will be noticed.

[lamarmathis]

they can also be bound up and the only way to tell that is to pull he shaft and see if they move freely

[craig long]

when looking at the u joints, the seals are sometimes pushed out and or torn if the joints are bad.

[Rob]

ill have to look tomorow afternoon. i got to get this figured out, its driving me nuts.

[ssquire37]

I went by Autozone and all they had was non-greaseable ujoints Bigcountry says advanced has them for 11.00 greaseable. I will go there today at lunch.
When I switch from Rev. to Drive or visa I have a clunck, also when I'm coming to stop and just gliding in before applying the brake I hear a grinding noise not continuous but intermitten so I think it is ujoints binding at a certain point. I will change them before I bring to a driveline shop and pay 300.00 plus for what they think, then if that doesn't work then I will try driveline shop.



Shane

[craig long]

i changed both of mine and went sealed on one of mine to see how it does. good luck

[ssquire37]

I picked up 3 from advanced today at lunch $33.00. I've been working OT so I will not get to change till this weekend and I will post how it goes.


Shane

[Rob]

definately let me know. i am curious if my joints are bad. what brand did you get??

[craig long]

tools to change them after shaft is off of truck
hammer, spark plug socket and a vice.
changed one of mine in an autozone paring lot. they let me use their vice.