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

[Homewrecker007]

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?

[Homewrecker007]

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 2 hours ago 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? 

[Homewrecker007]

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 

[Homewrecker007]

 

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 1 hour ago by Homewrecker007

[Pinnacle]

7 minutes ago, Homewrecker007 said:

 

Yes, I do.

Oh that's sex

[Homewrecker007]

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 1 hour ago 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 

[Homewrecker007]

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. 

[Homewrecker007]

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

[Homewrecker007]

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