GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Sierra - 4WD 🢒 Driveline/Axle 🢒 Rear Drive Axle - Locking/Limited Slip Rear Axle 🢒 Locking Differential Thrust Block Sizes

Locking Differential Thrust Block Sizes for GMC Truck GMC K Sierra - 4WD 1999

Color Code

7 5/8"

8 1/2" and 8 5/8"

9 1/2"

Purple

1.260"

1.322"

1.598"

White

1.264"

1.326"

1.602"

Brown

1.268"

1.330"

1.606"

Yellow

1.272"

1.334"

1.610"

Orange

1.276"

1.338"

1.614"

Pink

1.280"

1.342"

1.618"

Green

1.284"

1.346"

1.622"

Blue

1.288"

1.350"

1.626"

Black

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1.630"