non sembra difficile...

per il rabbocco, basta togliere il tappo e pompare dentro





1. Jack up rear, put catch pan under diff.

2. Loosen and remove lower diff drain plug, if I remember right a 3/8" drive ratchet or extension will go right in the square hole.

3. Loosen and remove upper fill plug

4. Let rear drain in a well ventilated are, I hate the smell of this stuff.

5. reinstall drain plug

6. Add 1 qt. Redline 75w90 synthetic gear oil
(a fluid transfer pump works well for this, $5-$10 any auto parts store)

7. Add 1 package GM limited slip differential additive.

8. Break open another quart of redline 75w90, fill until fluid level is just below plug (you can bend your pinky in there to check)

9. if you overfill drain a little back out, or you will have "leaky butt syndrome".

10. Re-install fill plug.

12. Drive it through couple of heat/cool cycles before you nail it harshly.