They have 14mm x 1.5 wheel stud, with a bolt pattern of 5 on 5" (2wd, 1/2 ton), 6 on 5.5" (4wd, 1/2 ton & 3/4 ton LD), or 8 on 6.5" (3/4 ton HD & 1 ton)
5 Lugs if it is 2 wheel drive 6 Lugs if it is 4 wheel drive
The 1500 has 6 lugs as where the 2500 has 8 lugs per wheel>
6 lugs... Its a 6x127 bolt pattern
6 lugs per wheel.
5 for each wheel
5 per wheel for a total of 20.
3/4 ton has 8 lugs per wheel and 1/2 tons have 6 per wheel.
A 98 Blazer S10 has 5 lugs on each wheel.
5 per wheel
5 for two wheel drive. Six for four wheel drive.
The difference in the number of lugs doesn't have to do with the year, if there's 5 lugs, the Tahoe is 2 wheel drive, if there's 6 lugs it is 4 wheel drive.
It should have 8 studs per wheel.