Boots97
I'm Awesome
I've seen 4x4 Tahoes in the local yards with the 11" brakes(JB 6). Most of them have the JB5 10" though; the drums look different if you're familiar with both of them. Burb's got the JB 6 because they are about 1000# heavier than a half ton rclb pickup, with the extra metal, glass and interior. By the time you get to the triple extra large truck like a C/K 3500 crew cab long bed, though, the weight is closer to the Burb.
I think the "standard" 16" steel wheel on the 400s tire size is 245/75-16; and the Z71 got the 265s as an upgrade. Could be wrong, though...it does happen occasionally LoL.
Yes, Tahoes could get either JB5 or JB6 brakes. Suburbans got JB6 standard which makes sense given the weight.
According to this link here, you COULD get 225/75/R16s, although I've never seen one in my own experience.
Most 400s are 245/75/R16. Z71 and 265s are separate RPO codes. Z71 is the off road package, while the 265s are RPO Codes XGD (front tires), YGD (rear tires), and ZGD (spare tire). Again, in my experience, all Z71s came with 265s from the factory. Regular 4x4s could either get 245s or 265s
1997 Chevrolet K1500 - Wheel & Tire Sizes, PCD, Offset and Rims specs
Wheel size, PCD, offset, and other specifications such as bolt pattern, thread size (THD), center bore (CB), trim levels for 1997 Chevrolet K1500. Wheel and tire fitment data. Original equipment and alternative options.
www.wheel-size.com