01 4WD Tahoe Rear Brakes

[incognito]

Im looking to do a brake job on my 01 Tahoe 4wd

Ive been checking out some pads and rotors online, its asking me if I have single or duel piston rear brake calipers ?
Ive never had the rear wheels off the truck so I dont know.
I have my VIN and RPO codes, bit they dont seem to be helping me, rpo JC5 only lists 4 wheel disk etc etc.

is there any way to check via RPO or VIN to confirm what I had ?
or did all tahoes have duel rears ? very few ? common ? not common ?

 

[KLFER]

you can look at the rear calipers and you will see 1 or 2 round looking cylinders shapes and thats how you tell, you can post a pic and i can tell you what you have.