Installing "2021 PPV" style 6-Piston Brembo Front Brakes on a 2007 Yukon Denali

[Geotrash]

Gathering parts for this swap right now, has anyone upgraded master cylinder with this kit? I am a bit concerned about fluid flow/ quantity with upgrading to six piston. If so what Master cylinder did you use? Also is hydroboost a possibility? I have seen mixed reviews. Currently running a cam and procharger so I am a bit concerned with vacuum.

From a fluid dynamics perspective, I believe increasing the bore of the master cylinder would work against you. The better braking effect of the bigger brakes comes from both the mechanical advantage of the larger rotor diameter, but also from the hydraulic advantage that the master cylinder provides by pushing fluid into a larger chamber volume within the caliper pistons. Yet the only cost is slightly more pedal travel. Ergo, the larger brakes generate more force for the same for pressure on the pedal. A larger master cylinder bore would slightly reduce the pedal travel while reducing or negating the hydraulic advantage. The net effect would be the need to increase foot pressure for the same stopping power.

 

[petethepug]

Non ABS vehicle do need a slight increase in the MC size because, as previously mentioned, more fluid needs to move into the calipers. With ABS and it’s pump you’re pushing the fluid through the system at pressures way beyond what a pedal stomp would.

No MC upgrade or modulator needed, the ABS does all that for you. These are good times when you can piece together a Brembo big brake kit for a little over a grand instead of shelling out 3-$4k all at once in a kit.

 

[MWD_CTSV]

The fluid displacement volume is slightly lower for the PPV calipers vs stock GMT900, so going to a larger master cylinder would have a negative effect. Which is why this upgrade is so ideal because you don't need to change the master, or compromise with longer pedal movement

 

[2011platinum]

I’m about a month into this swap, having some issues with squealing brakes. Suspect maybe just pad material but wondering if anyone has had issues with noise? Thinking of trying another brand of pad to see the results (worth the $50 or $60 to try)

 

[wulfpack06]

just adding wheels to the list that don't clear. these are 22" x 9" with a 24 offset factory wheels. ended up having to install longer lugs and a 12mm spacer

 

[mikez71]

@wulfpack06, pics of the whole truck please!

 

[wulfpack06]

 

[Doug118]

I did this swap over the weekend. As far as major upgrades, this was as easy as it gets. My only difficulty was getting the old banjo bolt out of the line... Someone had jammed the wrong size crush washer in there, and took me a while to get the bolt out...

Two questions for the guys who have done it. Have you noticed the brake line extending to almost maximum stretch when you turn the wheel to full lock? Has anyone run the stock 2007 Escalade wheels with these brakes? Looks like it clears by maybe 1/16" of an inch from the spokes.

Thanks guys for this thread

I just scored this brake setup from the junkyard and was searching everywhere to see if they’d clear my stock Escalade wheels. This picture made my day lol

 

[Doug118]

Just picked up my setup from the junkyard and they didn’t give me the banjo bolt. Does anyone know of the 07-14 bolt is the same? Rock auto lists the bolt as “except heavy duty” and I can’t find it on any GM parts site to cross reference

 

[wulfpack06]

View attachment 425230
Just picked up my setup from the junkyard and they didn’t give me the banjo bolt. Does anyone know of the 07-14 bolt is the same? Rock auto lists the bolt as “except heavy duty” and I can’t find it on any GM parts site to cross reference

no they are different threads, i used gm part number 11569590 it was a bit long and i had to cut it down though

 

[wildchev67]

I just did this swap on a 2011 escalade platinum, with MaxTrac 2" drop spindles.
The brakes all fit, but the wheels did not. As far as I can tell, I am running the same Platinum wheels, as the first post.
-Does anybody know if the 2012 platinum wheels have more clearance for brakes?

Currently running longer wheel studs and a 1/2" spacer, but would like a better solution. Likely 2021+ GM 22" wheels in the future.

For caliper spacing I used a couple shims, 0.133" total thickness. This almost centered the caliper, with just a little more space on the spindle side.

If using drop spindles, I had to cut off one stud on bottom of the backing plate.


Parts list:

GM GENUINE	84793057	Caliper (Drivers Side)
GM GENUINE	84793058	Caliper (Passenger Side)
GM GENUINE	11569590	Banjo Bolt x2
GM GENUINE	21012386	Banjo Bolt Washer x4
GM GENUINE	11546469	Caliper Bolt x4
GM GENUINE	84495310 (84763236)	Brake Backing Plate (passenger side)
GM GENUINE	84495309 (84763235)	Brake Backing Plate (Drivers side)
POWER STOP	AR82209XPR	Rotors (both sides)
POWER STOP	Z37-2407	Brake Pad (both sides, pins included)

 

[petethepug]

It’s imperative that you use your favorite grease between the pistons & back of the pads, the ears or tips of the pads on both sides of the caliper.

I’m about a month into this swap, having some issues with squealing brakes. Suspect maybe just pad material but wondering if anyone has had issues with noise? Thinking of trying another brand of pad to see the results (worth the $50 or $60 to try)

Either the 10-12 mm spacers are needed for the PPV / GM aftermarket swap or not. There’s been no solid documentation on the rim offset and chassis where it has been a perfect fit yet.

 

[Doug118]

I can’t believe the problems I’m having with these brakes. The GM part number for the banjo bolt says it’s for 02-22 trucks but the 6 piston caliper seems to be a different thread pitch

 

[Doug118]

Well since I couldn’t find help anywhere, I just brought the caliper to the hardware store to find what the thread size was. It’s 3/8-24 for anyone needing to know. The older banjo bolts are m10x1.5x23mm

 

[Twov8sandat4]

I can’t believe the problems I’m having with these brakes. The GM part number for the banjo bolt says it’s for 02-22 trucks but the 6 piston caliper seems to be a different thread pitch

I know this is a little late, but I used the banjo bolt listed in post #3. Worked perfectly.

 

[Twov8sandat4]

It’s imperative that you use your favorite grease between the pistons & back of the pads, the ears or tips of the pads on both sides of the caliper.



Either the 10-12 mm spacers are needed for the PPV / GM aftermarket swap or not. There’s been no solid documentation on the rim offset and chassis where it has been a perfect fit yet.

My original 07 Escalade 22s cleared with just a hair of clearance. I upgraded to later model 22s and now I have tons of clearance:

 

[Doug118]

I know this is a little late, but I used the banjo bolt listed in post #3. Worked perfectly.

This is what I don’t understand. That GM part number says 2002-2023 trucks. My truck is an 08 and my banjo bolt didn’t fit. I called the dealer and they told me they don’t list a banjo bolt for the PPV trucks so I was lost on the whole situation

 

[Twov8sandat4]

This is what I don’t understand. That GM part number says 2002-2023 trucks. My truck is an 08 and my banjo bolt didn’t fit. I called the dealer and they told me they don’t list a banjo bolt for the PPV trucks so I was lost on the whole situation

At the 2 minute mark, I have the banjo bolts in GM bags. Also listed all the parts in the description.

 

[Doug118]

At the 2 minute mark, I have the banjo bolts in GM bags. Also listed all the parts in the description.

I saw the video and don’t know what to tell you. Those bolts 1000% did not fit into my calipers for whatever reason

 

[Doug118]

I can’t believe the issues I’m having with this upgrade. First it was the banjo bolts. After getting the right bolt and getting the brakes on, I find out one of my wheels isn’t oem and hits the caliper on one side but not the other. The other wheel has 1/4” of clearance. Oh and I couldn’t get them to bleed enough to have a good pedal. It’s soft and has a lot of travel so I’m just going to bring it somewhere and have them vacuum bleed them