Rear cylinder bore size?

[cthudak]

Hi,
I searched through the many threads in this section, but none seem to address my problem. I have a 97 4x4 w/ 4wheel abs. limited slip rear end. I know I have 10" rear brakes, but my question is how do I know what my rear cylinder bore size is? NAPA and Rock Auto offer a 13/16" and a 7/8" bore size cylider for the 10" rear brake. Is there a quick way to know which size I have short of dissasembling?

Thanks for the help

 

[ForOffRoadDriving]

i just cataloged your application on our parts system (auto value/ bumper to bumper) and it only lists one size for a 1997 ranger 4x4 with 10" drums. they are 3/4 bore and the part number is WC370031, left and right are the same, and it specifies that they fit 95-97. they retail for 9.75 ea over the counter. i just checked their (rockauto) site and they are only listing 3/4" bore for the 10" drum so im confused?