I'm looking to upgrade the braking system on my 2001 Sierra. I've been killing the servers with searches all day, and I can't confirm if what I'm thinking about would work or not.

I'm looking for the largest rotor that I can fit inside the stock 16" wheels, so I can run DR's at the track. If I recall correctly, don't the SUV's come with larger rotors than the trucks? And the SUV's ran the same 16" wheels that I'm running. So couldn't you just order the stock upgrade rotors for the Tahoe, and get a slightly larger surface area rotor?

I've also read a few threads on a couple of people upgrading the rear calipers to the two piston units from the SUV, but not a lot of people have done it and those that did really didn't have a whole lot of information posted. I've found some GM calipers online anywhere from $45 to $100 each. Haven't seen how much the brackets are, but I think they're only about $80/ea from the dealer. So, about $300 to upgrade to two piston calipers doesn't seem that bad to me. Just don't know if there are any other mods (prop valve, master cyl, etc) that would have to go along with the swap?

Here's what I'm thinking would make the best upgrade that will still fit in the stock 16" rims, if my info is correct...

*cross drilled and/or slotted SUV rotors
*upgraded SUV two piston calipers for the rear
*SS brake lines
*ATE or equivalent fluid
*Hawk pads

 

Are you wanting to have matching size tires on front and back?? The fronts do the majority of the work. I got the powerslot 14' slotted rotors and Hawks for the front and SSBC rear brake upgrade with factory size calipers for the back. I also got SS brake lines and ATE brake fluid. I wouldnt go through the expense of trying to get 2 piston calipers fabbed up on the back when the front is the most important anyway.
BTW are the rear calipers on the SUV 2 piston or are you wanting to put front calipers on the back?

 

I wanted to be able to run 16's all the way around, but I guess it's not 100% necessary. I just didn't want to upgrade the front and not the back.

I was wanting to put the rear SUV 2 piston calipers on the rear of my truck. Worth it?

 

I seriously doubt it would be worth it. Like I said the front does most of the work, upgrade the front as much as possible within your budget, then do the SSBC rear kit $185 and the SS lines and fluid and your going to have a killer setup. Im going to be upgrading my front calipers once I have all the motor, turbo, etc stuff done, but that will be to 4 Piston SSBC calipers.