GMC 2003 GMT560 T-Series Owner's Manual page 212

3. Put on the wheel nuts.
4. Finger-tighten the nuts.
5. Oil the surfaces between the nuts and washers. Do
not oil the studs or the threads of the nut.
6. Tighten the nuts to 400 lb-ft (542 N-m) if an 8-hole
stud or 480 lb-ft (650 N-m) if a 10-hole stud, using
the following diagrams.
5-56
8-Hole
10–Hole (Front) 10–Hole (Rear)