How to remove a drive shaft on a 20V jtd (assumption made that you will have a jack and
a good set of axle stands and the undertray has been removed):
* There is no fill level on the 20V gearbox (GM box
) so you should either drain all of the oil out and re-fill or catch any oil lost when you lever out the inner stub, measure it and replace the same amount.
First thing to do is loosen the hub nut. You can either get someone to press hard on the brake pedal with the wheel off or - even better
- use a space saver with a centre hole and
someone pressing on the pedal! You will need a thin wall deep socket of the correct size (sorry I can't remember the size of the top of my head, but I will try to find the socket in my tool box). I had to get busy with a grinder on the outside of the socket to make it fit.
Then release the brake caliper and drop the disk. You don't want a heavy disk in the way and they are easy to take off. Anti-roll bar drop link will need to be released so it might be a good time to replace it.
Next you need to release the bolt through the y-shaped "yoke" at the base of the shocker. I found it best to remove the whole strut but it is not essential. You will need to knock the yoke of the end of the shocker to get it out of the way of the shaft. The ball joint at the upper wishbone will also need to be split.
The shaft splits at the inner CV. By levering the bottom suspension arm down you will be able to split the inner joint. The inner section simply levers out of the gearbox using a couple of large screwdrivers.
As they say, re-assemble in reverse order!
The only difficulty is lack of space. I had replaced the CV boot 3 times before I finally replaced the driveshaft so with practice I could replace a driveshaft in less than two hours start to finish (on my driveway).
I had my driveshaft reconditioned by Driveshaft UK. Excellent service, great job done and great value. I posted mine from the Isle of Lewis on Monday morning and had it back by Thursday lunchtime! Superb!