brake rotor question

[recian]

Well since I got new pads with my truck I've been looking to do rotors. I hate doing one without the other. I found a company I've used before that makes zinc plated drilled/slotted rotors makes them for the MM/D50 Theyre asking me if it has 9.5" or 10" rear drums saying it makes a difference in the rotors. Has anyone come across this before? I can assume the 9.5s will have larger rotors but is there a way to check without taking everything apart?

[lush90]

Be sure to mic your rotors to see if there is enough "meat" left before replacing them or you are just throwing money away. My $.02!

[LSR Mike]

CAPS is your friend! I looked up my 1992 and they're 10"

[recian]

I checked auto stores and all my local stores are telling me 254mm or 10"