1996 GMC K3500 DRW, Extended Cab, Flatbed, 454, NV-4500

[Wide Open]

Originally Posted by 83GMCK2500

Prior to the accident, I accomplished one of the tasks I've had on the back burner. BRAKE UPGRADE! Anyone watch that Alaska Off-Road Warriors show? The lower 48 team? I've had the pleasure of talking with both of them on multiple occasions. Carl owns/runs Jantz Engineering near where I used to live & work, I had him machine the upper and lower ball joint tapers in a set of GMT-800 knuckles for me to the correct diameter for the -400 ball joints. During the brake upgrade I installed new upper and lower ball joints, lower control arm bushings, sway bar bushings, and sway bar end links.

Good-bye...


Hello


Coming together


So much bigger

What size rotors did you end up with?
Aren't the stock GMT 400's ones around 12"?
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[83GMCK2500]

Originally Posted by Wide Open

What size rotors did you end up with?
Aren't the stock GMT 400's ones around 12"?
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Stock front rotor on a DRW truck is GM: 12549137, AC Delco: #177-804
What I put on was the rotor that came with those suspension parts off of a 2000 K2500 (GMT-800) and it is GM: 15942195, AC Delco: #177-1038

Stock: 12.5 in x 1.535 in
Current: 12.795 in x 1.5 in

When I need to replace the front brakes I will likely move to the GMT-800 DRW front rotors, P/N's: 15733625/#177-878 which are the exact same dimensions as current. Where they differ is in the thickness of the wear surface, the DRW ones are much thicker. Visually the region of the rotor where the vanes are is half as wide.