Drive shaft oil leak....?

[Rearwheelaction]

My S4 has started to leak abit around one of the half shafts. Ive been reading the different posts about this problem and still have some questions.

1. If one is leaking should I change both at the same time? Trying to keep costs down as im selling the car.

2. Apart from the new oil is there any other parts I need to buy apart from the O rings and seals?

3. Where is the best place to get these parts?

4. If I got a local garage to change these, how much do you think it would cost to do the job?

Thanks

[Rich H]

Driving the seals in square and to the right depth is harder than it looks.

I made up a tool on the lathe from nylon to do mine.

You will need the 4 roll pins as well.

the rest is straight forward enough.

Top tip: Undo the inboard suspension bolts rather than trying to undo the outboard bolts and swing the hub outwards to rlease the shafts.

[mc21.8]

put silicon in the roll pins after fitting them at 180 deg of each other<pins><seal ends>

could clean them b4 selling ouch!!!!could do one only!!but would help sale if 2 done..