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2007 Silverado Drum Brakes

bajakid2

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bajakid2 Enthusiast

bajakid2

Posted
Posted

hey, i was curious if it was possible to get all the necessary parts from a 2007 silverado that has rear disc brakes and would they bolt up to my existing set up to replace the rear drums?

would it effect anything due to the proportioning valve set up for drum brakes?

thanks

Travis

c4cruiser Enthusiast

c4cruiser

Posted
Posted

The easiest way would be to simply get an entire rear axle including the brakes and replace the existing one. You could probably get all the individual parts but it could be expensive. Calipers, rotors, pads, mounting brackets, parking brake components, and new brake hoses would be needed.

 

There would have to be a change to the proportioning valve/spring in the master cylinder and you may even have to swap the existing master for a disc brake specific unit. If you have the dynamic proportional braking system, there may have to be changes to the BCM. The ABS pump may also be affected due to brake pressure and even the amount of fluid used in the operation of the disc caliper.

Zembonez Senior Enthusiast

Zembonez

Posted
Posted

The real question is why?

 

The GMT900 trucks with drum brakes stop quicker and with better modulation than the GMT800s did with discs. Simply adding OEM disc brakes isn't going to necessarily improve anything. If you intended to go with a high performance upgrade, it might be a different story.

VMax2007 Senior Enthusiast

VMax2007

Posted
Posted

Drum brakes belong the same place as carburetors, in the automotive history books.

 

Disc brakes > Drum Brakes.

 

Nobody can argue that.

 

It's one of a handful of reasons I went with the Vmax.

tobias Senior Enthusiast

tobias

Posted
Posted
Drum brakes belong the same place as carburetors, in the automotive history books.

 

Disc brakes > Drum Brakes.

 

Nobody can argue that.

 

It's one of a handful of reasons I went with the Vmax.

 

 

I'm guessing the other reason is much less than a handfull. :loser:

 

:thumbs:

 

:bs:

VMax2007 Senior Enthusiast

VMax2007

Posted
Posted
Drum brakes belong the same place as carburetors, in the automotive history books.

 

Disc brakes > Drum Brakes.

 

Nobody can argue that.

 

It's one of a handful of reasons I went with the Vmax.

 

 

I'm guessing the other reason is much less than a handfull. :loser:

 

:thumbs:

 

:bs:

 

 

Not sure, but it's more than a mouthful for your girlfriend. :D

dietz4ibanez Senior Enthusiast

dietz4ibanez

Posted
Posted

TSM from Hotrod Manufacturing makes a disc break conversion kits I would like to think that if you were seriously considering disc brakes that you could get something more on the performance side with bigger rotors..

 

I put a disc brake conversion kit on my 99 Chevy truck... I put a 3/4 ton rear end to but they had a brake conversion kit for my 10 bolt!

tobias Senior Enthusiast

tobias

Posted
Posted
Drum brakes belong the same place as carburetors, in the automotive history books.

 

Disc brakes > Drum Brakes.

 

Nobody can argue that.

 

It's one of a handful of reasons I went with the Vmax.

 

 

I'm guessing the other reason is much less than a handfull. :loser:

 

:thumbs:

 

:bs:

 

 

Not sure, but it's more than a mouthful for your girlfriend. :D

 

 

Barely.

 

520705668_ba9fbeeebf.jpg

 

:D

pm26 Senior Enthusiast

pm26

Posted
Posted
Drum brakes belong the same place as carburetors, in the automotive history books.

 

Disc brakes > Drum Brakes.

 

Nobody can argue that.

 

It's one of a handful of reasons I went with the Vmax.

 

 

When GM first came out with the 1500 crew cab in 2004, it still had rear disc brakes. They were absolutely awful. I test drove a new 2004 crew cab Z71 and did not buy it because of weak brakes. My 2006 with rear drum brakes has much more responsive brakes and less pedal pressure is required to stop the truck. They probably increased the diameter of the front rotors too, but it is quite an improvement over the 2004 model.

 

I must admit however, the rear drum brakes ABS system is not as efficient as all disc brake ABS system due to slower response of the drum brakes to pressure modulation.

VMax2007 Senior Enthusiast

VMax2007

Posted
Posted
Drum brakes belong the same place as carburetors, in the automotive history books.

 

Disc brakes > Drum Brakes.

 

Nobody can argue that.

 

It's one of a handful of reasons I went with the Vmax.

 

 

When GM first came out with the 1500 crew cab in 2004, it still had rear disc brakes. They were absolutely awful. I test drove a new 2004 crew cab Z71 and did not buy it because of weak brakes. My 2006 with rear drum brakes has much more responsive brakes and less pedal pressure is required to stop the truck. They probably increased the diameter of the front rotors too, but it is quite an improvement over the 2004 model.

 

 

 

True, they did beef up the front brakes when they went back to drums. I don't doubt that your brakes in your 2006 are better than your 2004, but if you think it's due to the drum brakes, you are only fooling yourself.

 

The 4 wheel disc brakes in my 2007 are 100x better then the 4 wheel disc brakes in my 2000.

Zembonez Senior Enthusiast

Zembonez

Posted
Posted

I call BS on the blanket statement that discs are always better than drums.

 

Rear brakes are more "helper" brakes than anything. The vast majority of the braking system is biased toward the front brakes. Back in our SCCA racer days, we ran as much as 80% front bias on the GT cars. Any more and the rears would lock on corner entry. I know most people don't drive like that on the street, but I'd bet that you could drive normally using only front brakes and many people would not be able to ever tell the difference on dry land. Good rear brakes (drum or disc) can perform equally as well... they only have about 30% of the brake force to deal with.

VMax2007 Senior Enthusiast

VMax2007

Posted
Posted
I call BS on the blanket statement that discs are always better than drums.

 

Rear brakes are more "helper" brakes than anything. The vast majority of the braking system is biased toward the front brakes. Back in our SCCA racer days, we ran as much as 80% front bias on the GT cars. Any more and the rears would lock on corner entry. I know most people don't drive like that on the street, but I'd bet that you could drive normally using only front brakes and many people would not be able to ever tell the difference on dry land. Good rear brakes (drum or disc) can perform equally as well... they only have about 30% of the brake force to deal with.

 

 

Yes, that is why rear discs/calipers are smaller than the fronts. :thumbs:

 

While everything you said is true, the fact still remains that discs are superior to drums in braking ability.

 

Hell, even little 2000 lb cars have all gone to 4 wheel disc breaks today. Why is that?

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