under normal acceleration, i get a knocking from the rear area of the car...or what seems to be. it increases with frequency as i accelerate, but as soon as i let off the gas, it goes away.

i did do a search and i noticed other people had this problem.

im assuming it is a u-joint, but i have some questions about it.


my dad is pretty mechanically inclined compared to myself, so i think we could handle any repairs.

1. how hard would it be on a scale of 1-10 to replace a u-joint?
2. is my suspicion of the u-joint correct?
3. how much would a part replacement cost?
4. what would i expect to pay if i get it professionally replaced?
5. what is a u-joint responsible for?



i did read one thread where a couple guys had some teeth missing on their pinions in the read end. could this be my culprit, or is it more than likely the u-joint?

 

sorry, just realized this thread belonged here.

 

If they have never been done before the hardest part is getting the old ones out due to the plastic injection. Other than that its a piece of cake. Just make sure you get the snap rings seated completely.

 

Pretty easy to do if you have a torch, hammer, and a vice.

 

how much should i expect to pay for a replacement?