Flapper Boxes for a 1981 911SC

[jmeany]

My 1981 911SC is in need of new flapper boxes. I was looking them up and I have a question. I have automatic heat (disconnected) The section says "For right/left (??) side without autoheat." I don't remeber which side (L/R) but am to assume that one or the other is no longer availible? Gonna hit the nuts and studs with PB Blaster and let them soak for abit. before I change them.

[jmeany]

Here is what is listed:
Heater Flapper Box, left, without auto-heat, 911 (1974-86) [Photo]
C-211-013-00