FixVault

Locking Differential Thrust Block Sizes

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Locking Differential Thrust Block Sizes

Color Code 8.6" Axle 9.5" Axle 10.5" Axle
Blue 34.290 mm (1.350") 40.488 mm (1.594") 40.488 mm (1.594")
Purple 33.578 mm (1.322") 40.589 mm (1.598") 40.589 mm (1.598")
White 33.680 mm (1.326") 40.691 mm (1.602") 40.691 mm (1.602")
Brown 33.782 mm (1.330") 40.792 mm (1.606") 40.792 mm (1.606")
Yellow 33.883 mm (1.334") 40.894 mm (1.610") 40.894 mm (1.610")
Orange 33.985 mm (1.338") 40.996 mm (1.614") 40.996 mm (1.614")
Pink 34.087 mm (1.342") 41.097 mm (1.618") 41.097 mm (1.618")
Green 34.188 mm (1.346") 41.199 mm (1.622") 41.199 mm (1.622")