You probably already have seen this, but:
Normally there is a tag identifying exactly what you have. Is it a 206, 209 or a 210? Theres the tag way and there is the pull the clutch and look at the tip of the crank method.
I've been told that York 210s are pretty easy to spot due to their shape. YOu can double check by spending a few minutes and pulling the clutch/pulley off to verify.
Cars to look for a 210:
1975-1984 VOLVO 240, 260 (2.1L,2.2L,2.3L)
1973-1974 VOLVO 140, 160
Total Vehicle list for York Compressors:
**** York Compressor Listing ****
AUDI, 100LS, 77-76, York Tube O-Ring RHS
FORD, Bronco (Factory Air), 81-78, York Tube O-Ring LHS
FORD, Bronco (Dealer Air), 83-78, York Flange RHS
FORD, Country Squire (Dealer Air), 84-75, York Flange RHS
FORD, Crown Victoria, LTD Full Size (Dealer Air), 84-75, York Flange RHS
FORD, E Series Van (Factory Air), 82-76, York Tube O-Ring LHS
FORD, E Series Van (Dealer Air), 85-76, York Flange RHS
FORD, F Series Pickup F150-F350 (Factory Air), 81-76, York Tube O-Ring LHS
FORD, F Series Pickup F150-F350 (Dealer Air), 85-80, York Flange RHS
FORD, Fairmont (Factory Air), 82-79, York Tube O-Ring LHS
FORD, Fairmont (Dealer Air), 83-79, York Flange RHS
FORD, Granada (Factory Air), 82-80, York Tube O-Ring LHS
FORD, Granada (Dealer Air), 82-76, York Flange RHS
FORD, LTD II (Dealer Air), 84-83, York Flange RHS
FORD, Maverick (Factory Air), 77-76, York Tube O-Ring LHS
FORD, Maverick (Dealer Air), 77-76, York Flange RHS
FORD, Mustang (Factory Air), 81-76, York Tube O-Ring LHS
FORD, Mustang (Dealer Air), 84-79, York Flange RHS
FORD, Pinto (Factory Air), 80-76, York Tube O-Ring LHS
FORD, Pinto (Dealer Air), 80-76, York Flange RHS
FORD, Ranger (Dealer Air), 84-83, York Flange RHS
FORD, Thunderbird (Factory Air), 82-77, York Tube O-Ring LHS
FORD, Thunderbird (Dealer Air), 88-80, York Flange RHS
FORD, Torino (Factory Air), 76, York Tube O-Ring LHS
FORD, Torino (Dealer Air), 76, York Flange RHS
JEEP, Cherokee, 83-76, York Tube O-Ring RHS
JEEP, Cherokee, 83-76, York Flange RHS
JEEP, Comanche, 88-86, York Tube O-Ring RHS
JEEP, Grand Wagoneer, 91-84, York Tube O-Ring RHS
JEEP, Wagoneer, 83-76, York Tube O-Ring RHS
MERCURY, Bobcat (Factory Air), 80-76, York Tube O-Ring LHS
MERCURY, Bobcat (Delear Air), 80-76, York Flange RHS
MERCURY, Capri (Factory Air), 82-79, York Tube O-Ring LHS
MERCURY, Capri (Dealer Air), 84-79, York Flange RHS
MERCURY, Colony Park (Dealer Air), 84-80, York Flange RHS
MERCURY, Comet (Factory Air), 77-76, York Tube O-Ring LHS
MERCURY, Comet (Dealer Air), 77-76, York Flange RHS
MERCURY, Cougar (Factory Air), 82-76, York Tube O-Ring LHS
MERCURY, Cougar (Dealer Air), 82-76, York Flange RHS
MERCURY, Grand Marquis (Dealer Air), 84-83, York Flange RHS
MERCURY, Marquis - Full Size (Dealer Air), 82-80, York Flange RHS
MERCURY, Marquis - Mid Size (Dealer Air), 84-83, York Flange RHS
MERCURY, Monarch (Factory Air), 80, York Tube O-Ring LHS
MERCURY, Monarch (Dealer Air), 80-76, York Flange RHS
MERCURY, Montego (Factory Air), 76, York Tube O-Ring LHS
MERCURY, Montego (Dealer Air), 76, York Flange RHS
MERCURY, Zephyr (Factory Air), 82-78, York Tube O-Ring LHS
MERCURY, Zephyr (Dealer Air), 83-78, York Flange RHS
PORSCHE, 911, 83-78, York Flattop RHS
PORSCHE, 914, 76-73, York Flattop RHS
PORSCHE, 930, 79-77, York Flattop RHS
VOLVO, 240 Series, 84-75, York Flange RHS