4 piston Brake Upgrade

[Razr20]

Hey everyone. Can someone point me in the direction of where I can find the post about doing the 4 piston, 13.5in front brake upgrade for my 18 Sierra 1500? I know its on here somewhere but I can't seem to find it. Basically needing the parts numbers and/or vehicles these parts came off of. Thanks guys/gals

[Buckwild27]

21 hours ago, Razr20 said:

Hey everyone. Can someone point me in the direction of where I can find the post about doing the 4 piston, 13.5in front brake upgrade for my 18 Sierra 1500? I know its on here somewhere but I can't seem to find it. Basically needing the parts numbers and/or vehicles these parts came off of. Thanks guys/gals

The calipers and rotors are off the 1/2 ton T1 model trucks 

Front Passenger Side Disc Brake Caliper without Pads and Bracket - GM (13545383)

Front Driver Side Disc Brake Caliper without Pads and Bracket - GM (13545382)

You need 2 of these.
Front Brake Caliper Guide Pin - GM (13539444)

Front Disc Brake Rotor (Coated) - GM (13542112)

You can also change the rear calipers to 4 piston from rear of the basic stingray corvette. Uses your existing rotor. Also requires an adapter 

Edited February 16, 2023 by Homewrecker007

[Pinnacle]

On 2/16/2023 at 2:45 AM, Homewrecker007 said:

The calipers and rotors are off the 1/2 ton T1 model trucks 

Front Passenger Side Disc Brake Caliper without Pads and Bracket - GM (13545383)

Front Driver Side Disc Brake Caliper without Pads and Bracket - GM (13545382)

You need 2 of these.
Front Brake Caliper Guide Pin - GM (13539444)

Front Disc Brake Rotor (Coated) - GM (13542112)

You can also change the rear calipers to 4 piston from rear of the basic stingray corvette. Uses your existing rotor. Also requires an adapter 

Is that it no adaptors , just bolt on?

[Buckwild27]

3 minutes ago, Pinnacle said:

Is that it no adaptors , just bolt on?

The front calipers will need a 4mm spacer between calipers and the spindle mounts to center it over the rotors. 

If you do the rear you can get brake calipers from a  gen 6 SS camaro those will require brackets to bolt up. I've done front and rear on my 2014 sierra and have about 10,000 miles on the new brake setup.  

Edited November 25, 2024 by Homewrecker007

[Pinnacle]

3 minutes ago, Homewrecker007 said:

The front calipers will need a 4mm spacer between calipers and the spindle mounts to center it over the rotors 

you know anyone that makes that? 

[Buckwild27]

Just now, Pinnacle said:

you know anyone that makes that? 

The 4mm spacer? My dad made mine. But most people just use 2 flat washers stacked together 

[Pinnacle]

1 minute ago, Homewrecker007 said:

The 4mm spacer? My dad made mine. But most people just use 2 flat washers stacked together 

you got pictures of your setup when you put it on? Id like a spacer that was specially made not washers, only the best for baby girl lol 

[Buckwild27]

 

13 minutes ago, Pinnacle said:

you got pictures of your setup when you put it on? Id like a spacer that was specially made not washers, only the best for baby girl lol 

Yes, I do.

Edited November 25, 2024 by Homewrecker007

[Pinnacle]

7 minutes ago, Homewrecker007 said:

 

Yes, I do.

Oh that's sex

[Buckwild27]

8 minutes ago, Pinnacle said:

Oh that's sex

Thank you, just FYI I didn't actually have to shave down the calipers to fit on the front.  My wheels cleared. I was just trying to make Banshee look like a bougie b!#$%.

Edited November 25, 2024 by Homewrecker007

[Pinnacle]

10 minutes ago, Homewrecker007 said:

Thank you, just FYI I didn't actually have to shave down the calipers to fit on the front.  My wheels cleared. I was just trying to make Banshee look like a bougie b!#$%.

lm running snowflakes stocks, I don't think they touch 

[Buckwild27]

1 minute ago, Pinnacle said:

lm running snowflakes stocks, I don't think they touch 

For the most part stock wheels I think anything 20" and up clear depending on year of truck. 

[Buckwild27]

Also i you're going to need a new spare tire wheel. I went with the 2023 police tahoe 20x9 Steel Wheel. 

[Buckwild27]

Here's the rear caliper adapters needed for the swap. 

[BackRoadZ1]

For anyone wondering if factory 18in wheels fit with 4 piston calipers. Yes they do fit but only with a 1/4 wheel spacer.