Brake Upgrade Help

[Matthew Jeschke]

Update: It looks like the CTS-V brake upgrade requires a larger wheel (possibly 20"?). Might be better to do the new Silverado brakes if going that route and having a smaller wheel. The CTS-V looks like but cannot confirm, would require an adapter plate as well. Very little info on swapping these into a GMT800 although a popular swap on other vehicles.

I'm back to the original CMT900 brake upgrade. My question on that upgrade is, I'd like the AC Delco Gold calipers. However, they are 150% the cost!

AC Delco Gold GMT900 Front Calipers

The only thing I think is different are some of the seals??? I'd venture a person could rebuild another caliper with the upgraded seals??? I could care less about the powder coating... Any idea?

 

[Marky Dissod]

If you want to be sure of getting better seals, ask for the 2010-2014 Tahoe PPV calipers.
Those come with high temp seals.

 

[Matthew Jeschke]

I got my upgraded brakes. They're from GMT900 Silverado. After further research I see up to 2018/2019? the part numbers are the same for the calipers. I bought them used and am rebuilding them. Did my test fit on passenger side and it bolts up perfectly to the steering knuckle.

Only thing, where do I get the larger dust shields to protect the larger rotors?

GM PN 25918337 (left) and PN 25918338 (right) are discontinued.

 

[Marky Dissod]

I got my upgraded brakes. They're from GMT900 Silverado.
After further research I see up to 2018/2019? the part numbers are the same for the calipers.
I bought them used and am rebuilding them. Did my test fit on passenger side and it bolts up perfectly to the steering knuckle.

... where do I get the larger dust shields to protect the larger rotors?

GM PN 25918337 (left) and PN 25918338 (right) are discontinued.

At risk of jinxing myself ... so far ... my GMT800 dust shields have sufficed ...

 

[Matthew Jeschke]

I am going to stick with the GMT800 ones as seems oddly nobody makes the gmt900 ones anymore. If I am lucky to find a gmt900 in the junkyard I will snag them but for whatever reason I NEVER see gmt900 in the junkyard here.... Did they make far fewer gmt900s?

 

[Marky Dissod]

... going to stick with the GMT800 ones as seems oddly nobody makes the gmt900 ones anymore.
If I'm lucky to find a gmt900 in the junkyard I will snag them,
but for whatever reason I NEVER see gmt900 in the junkyard here ... Did they make far fewer gmt900s?

Maybe the GMTK2xx & GMT1xx are teaching people to take better care of their GMT900s?

 

[Matthew Jeschke]

hahahaha yeah, interior quality dropped off around the GMT800... but mechanical complexity got a little out of hand after the GMT900.

I'd still like to find this dust shields. Nowhere on eBay though and the part number isn't found anywhere on the internet. The old ones are 0.8" shorter, likely is fine, maybe fine regardless.

 

[Matthew Jeschke]

Anybody paint their calipers? I may have jumped the gun. I use rustoleum a lot to paint various car parts. I used it on my control arms and worked like a champ! However, cleaned up the calipers then sprayed them with rustoleum and it doesn't seem to like to bond. With little effort the paint comes off. I also forgot probably calipers use special paint as the brake fluid will dissolve paint.

 

[Marky Dissod]

I've never painted calipers myself. My mech insists you're supposed to use special paint on them.