If I had read this 10min ago I’d have measured while I was at the shop, to late I’m pooping in the cabin now.

 

Am I following this correctly... the H2 rear axle uses the same caliper as the front on a 99+ GM Truck?

EDIT:
Went back and looked closer at post #87. Seems the lug pattern and lateral spacing are the same but the radial spacing is farther out on the H2 axle to clear the parking brake hat and likely uses a smaller pad.

 

H2s use 1500 NBS front calipers, in the rear

 

How the hell do you have so many parts lmao @arthursc2 @1FastBrick

 

Brick lives in a junkyard.....

 

Junkyard dawg

 

According to GMpartsdirect they use a different part number both of which are discontinued.
NBS front pads are # 19210705
H2 rear pads are #18048101

However, looking at Rockauto they list all the same products from both NBS front pads and H2 rears so I'm going to assume they are the same size but the caliper mounting is pushed outward 1/4-1/2" on the H2 rear to make the caliper fit over a 13" rotor.

Arthur never breaks anything because nothing is ever finished and he skips leg days so he can't mash the throttle hard, and you know the saying "look what the cat drug in" well Mr Grumpy cat drags parts home.

 

Also, it's not just the H2s that use the NBS front calipers in the rear, it looks like all SRW HD trucks did the same.

 

Lmao **** you Dan, I skip arm day 😂😂

but I also try very hard to not break ****. Hence why my 4L60 has outlived your entire build 🤣🤣