I believe that the only difference is the shaft length is longer on the 72 models so that it will clear the thicker door panels.
Some one stated that there was an extra mounting screw on the 72 regulators.
The suppliers I have checked with show all the actuators and regulators to be the same except for 72's
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John Hutchison
Grapevine,Texas
76051
71 1/2 ton swb 307 pg
69 Jaguar XK-E 4.2 Roadster
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John Hutchison
Grapevine,Texas
68 1/2 t swb
68 Mustang
69 Jaguar
71 1/2 t swb
88 Supra CompTs6m
93 Escort GT
2005 Corolla XRS
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