I was going to say that this depends on the model year of the 22, 1972-78 had the shallow fin-keel, 1979-83 had a K/CB which had a much shallower keel. But then I noticed your screen name and knew we were talking about that 1975/76 22! I would thin that with minor adjustments if possible, the O'DAY should fit on the Catalina trailer (if setup for the Retractable Keel C22), just be sure there is good support under your keel, the Cat 22 retractable keel uses a different type of support under the keel, with most of the weight of the boat resting on the bunks and the weight of the keel resting in a "V" shaped block to take the weight of the keel lifting cable. Sat 22 with retractable keel draws 2' with keel up, the O 22 draws 1'11", that 1" of space may help make room for a plank under the keel for support spread over several crossmembers. If this trailer is for a Wing-Keel C22 (draft 2'6") it should still fir as long as you can adjust the bunks low enough to allow your keel to sit on the support that would be under the wing-keel.