BigKID

iTrader: (5)

Excellent visual reference!

Thanks for the measurements. The piston area is significantly smaller than the stock 2 piston floating caliper (2411 sqmm vs 4085 sqmm) so should firm up the pedal a good bit. It actually has a smaller area than any of the aftermarket BBKs for the trucks and most all GM/Brembo/PBR OEM performance calipers. The C6 Z06 6 piston PBR caliper (used with Rudy's brackets) is the closest at 2564. I have not been able to find any reliable measurements for the GMPP Brembo to compare it.

zz454Chevelle67

Caliper may need a good burping to.

shakenfake

This may be retarded but could I test fit a wheel on a 2019 to know if these brakes fit?

Like I drive a GMT-800 right, so could I just put my wheels on a 2019 to know if they clear? It sounds dumb. Am I retarded?

Drspencer

iTrader: (1)

No short bus rides here. Yes, that is a way to test however, know that the caliper is ~.120 further out from the center of the vehicle…I think….when using on an older truck.

shakenfake

How much farther do the performance/ppv brakes stick out in comparison to the stock 2019s? We may have covered it but just curious

Drspencer

iTrader: (1)

Oof, gonna have to get another set to measure. It's not so much THAT it sticks out, it's WHERE it sticks out. The PPV Brembo brakes have a lot of material near the hub which limits wheel choices. I don't think the 2019+ brakes have that material so close to the hub.

shakenfake

Ahh understood. I know multiple people with 21s just none that have the PPV brakes obviously.
Maybe I just need to buy a caliper and try it out...

shakenfake

You are talking about these wheels correct? They have a 28mm offset according to OEMWheelsLLC

My GMC Declads have a 31mm offset and your CK162s have a 24mm offset. I am curious to know the spoke thickness. I wonder if my declads wouldn't fit because of spoke thickness.

Edit: Forgot to add backspacing; HC wheels: 6.1, CK162s: 5.94, GMC Declads: 5.97
Now I throw in backspacing because I am wheel dumb and still don't know how a lot of this stuff relates to each other.

I bet on an NBS you still have to do the shimming. I also can't do spacers because my tires are like millimeters away from the fenders, I would be rubbing all day every day.

BigKID

iTrader: (5)

When it comes to caliper clearance, offset and backspace are not a direct factor. It is all about pad height and spoke design.

This is a snip from BC Forged's site... Notice how a low pad with a flat spoke profile (top left) would have much less caliper clearance than a deep concave high pad design (bottom righ). The flat spoke high pad would allow the most caliper clearance (top right)...

shakenfake

Thank you BigKid that is a fantastic explanation. I am getting the feeling that the declads may not work with these brakes