4 Piston Big Brake Upgrade from 2019-20

[SRQYukon]

I wasn't saying that the ABS won't activate. I was saying that even on hard stopping the braking it is so superior, I don't think it needed to activate. I'm in a dense traffic area and haven't been able to get out of traffic or in a good situation to try a true panic stop. I will try to confirm the ABS operation when I'm in a safe place to do so. I'm assuming that if there was an ABS problem it would probably be throwing a code, though.

I was driving on wet roads and grossing 10,000 lbs with my trailer today after one of Florida's afternoon showers. I did finally feel the ABS activate as I braked over some slick asphalt.

 

[Fjs0001]

I finally finished the big brake upgrade. I also lifted the Caddy 2 inches and installed bigger rims and ties.

 

[the_tool_man]

I finally finished the big brake upgrade. I also lifted the Caddy 2 inches and installed bigger rims and ties.
View attachment 353879View attachment 353880

Did you have to install spacers? If not, that gives me hope. If they'll fit behind those Esky wheels, maybe they'll fit behind mine. Now I've got something I can measure!

 

[Fjs0001]

Yes, I'm using 1/4 spacers. I also ground off the bump that's on the side of the caliper.

 

[fasteddy]

I finally finished the big brake upgrade. I also lifted the Caddy 2 inches and installed bigger rims and ties.
View attachment 353879View attachment 353880

Very Cool!
I have about 5000 miles on mine. Definitely one of my top 5 upgrades!

 

[SRQYukon]

I finally finished the big brake upgrade. I also lifted the Caddy 2 inches and installed bigger rims and ties.
View attachment 353879View attachment 353880

Did you powder-coat or paint?

 

[Fjs0001]

Did you powder-coat or paint?

I painted the calipers and the inside of the wheels with POR-15 caliper paint.

 

[Colby_e32]

Can anyone here confirm these rotors are 13.5" OD when measured across the back ?

I have a set of rotors here that were removed from a 2019 Tahoe WITHOUT 4 piston calipers. They sure do look mighty close to the 21+ rotors. Wondering if its just a .5" difference overall or what it actually is.

Thanks!

 

[Sam Harris]

I painted the calipers and the inside of the wheels with POR-15 caliper paint.

Inside of the wheels…? You have pics..? I don’t understand.

 

[SRQYukon]

Inside of the wheels…? You have pics..? I don’t understand.

I think he means the barrel part behind the spokes.