I recently ordered a new set of brakes for the truck. When I got everything in the rear pads and rotors do not fit. They were designed for a truck with dual piston calipers. My truck has single piston rear calipers. Which strangely enough when I ordered all these parts a few years ago, everything was right and fit fine. But this time nothing was right. When looking online it says the ext cab had dual piston calipers and the regular cabs have single piston, Is mine a fluke or are others like mine?
What 2001 or similar years came with dual piston rear calipers?
Would they fit my truck without any modifications? the parking brake is my main consideration.
Since I already have the rotors and pads should I just go get some new dual piston calipers from the parts store. they seem to be $75 per caliper.

 

Sounds like you got the suv rear brakes..I would just get new calipers/brackets for a tahoe/burb and roll with it.. Its an upgrade many have done on here

 

IIRC there is a difference in diameter of the discs for the back between dual and single piston calipers. If you're wanting stock stuff, you're looking for a 792A brake pad at most parts stores. (ie. MKD792A, QC792A, etc).

 

My 04 extended cab had the single piston.

I did the upgrade to the dual piston and I was happy with it. I say get the calipers. My brake lines worked just fine.

 

do i just need the calipers? the parking brake will work fine?

 

Would this be the caliper I need
Cardone Friction Choice 18B4765 - Unloaded Brake Caliper 2001 Chevrolet Silverado 1500 | O'Reilly Auto Parts
Cardone Friction Choice 18B4764 - Unloaded Brake Caliper 2001 Chevrolet Silverado 1500 | O'Reilly Auto Parts

they also have a caliper for vehicles with a 9900 GVW, which i guess is for a 1500 HD?
I noticed there is a 3rd rotor type with a diameter between the 12.8 and 13, but it has 8 lugs and seems to be for a 1500HD

 

If your just wanting a vehicle to verify parts fitment, a 2001 GMC Sierra C3 (ECSB 1500 / AWD) came equipped with 330mm rear rotors and dual piston calipers. Unless your loaded calipers come with them, you will need the caliper brackets as well.

 

Yeah I am looking at calipers that include the brackets (see link) unless you are talking about what is on the axle. then one of the other guys who has done the conversion will need to chime in

 

After looking at the links you posted, yes those are the only brackets you would need, as the flange on the axle is the same between the single and dual piston components.

 

Hey man...just wanted you to know that I went through the same issue a bit ago! I was just doing a brake job though and noticed that when I ordered the correct brakes that the previous owner I guess tried doing a half a** brake upgrade and thats why I had so many issues with my brakes! So I went ahead and upgraded to a dual piston caliper and done it right...works great now...LOL!!!