6-lug... Bolt Pattern is 6x5.5 or 6x139.7
YES, They are the same bolt pattern.
GM's bolt pattern has remained consistant over the years. 5-bolt pattern: 5x4.75" 6-bolt pattern: 6x5.5" 8-bolt pattern: 8x6.5"
it depends what truck your talking about, Year and Model. Mos of them are 6 bolts and are 6x139.7, then the 5 bolt trucks are 5x114.3. I dont know of the older ones but I would assume its the same as the 6 bolt pattern
6 1/2 on 8
NO Definately not the Chevy bolt pattern is a 8th of a inch smaller
6 lug 5.5 inch or 139.7 mm Medium Offset
6 lug 4.5" bolt pattern 6 lug 4.5" bolt pattern
Trailblazer, Envoy and most other trucks built on the gmt-360 platform.
6 X 7 1/4" lug centered
no.
no 1999 rims should be 170mm bolt pattern the older trucks had 6 1/2 in bolt pattern