AUTOT3K

iTrader: (3)

I use CRC products daily, its good stuff. but they do require maintenance, about once a year, clean the slides and lubricate. they'll never seize up again!

with your nbs, could you still fit 16" wheels with this?

GMCtrk

iTrader: (27)

No it requires 17" wheels minimum

brewster240

i did the 05+ fronts a few weeks ago.

someone junked a pickup with brand new calipers, pads, rotors, and hoses! got it all for $75 at the local pick and pull.

have teh suv rears waiting to go on.

AUTOT3K

iTrader: (3)

ya that was a really stupid question my nnbs requires min 17"...so I don't know why I thought it'd be different for the same brakes on a nbs...haha oops

GMCtrk

iTrader: (27)

Update on this:

Drove the truck and to my utter dismay I had abysmal braking. Like no braking at all until 3/4 pedal and very spongy pedal. Not safe to drive.

I rebleed the brakes again (using motive pressure bleeder 15-17 psi) and find still terrible brakes. Then I notice while bleeding the brakes and cracking the bleeder screw fluid leaking around the threads of the screw. Also, it had quite wobbly engagement. So I took the old bleeder screws out of my old calipers and put them in the Nnbs calipers and rebleed the brakes again. Now I have better brakes, safe to drive, but no better than my old worn out 184k brakes. I'm kind of at a loss honestly. Hydroboost and Nnbs brakes should be pretty terrific. I'm wondering if my old stock rubber lines are to blame. Maybe there's air in the abs module? I don't want to keep throwing money on this thing without a good diagnosis.

1FastBrick

iTrader: (17)

Most likely you still have air in the lines. But at that mileage it's possible the Master is also worn out.

Automated brake bleed procedure should also be performed.

ezdaar

iTrader: (1)

Bleed ABS at brake shop.

chris99gmc

Do you know what company makes the calipers?

Noah Burns

iTrader: (5)

if it is any consolation, I was never impressed with the breaking of my NNBS truck, always felt sloppy. The 2014 is a little better, still pretty mushy though. My 01 rcsb with hawk pads and good rotors all around was the best I've felt in a truck.

Ws6Luvr

iTrader: (1)

replace rubber with braided steel lines?