The "G"'s (1973 and up) hydraulic systems are different from the earlier 337's and O-2's. The early and military cylinders are internally different in that they have a retracted lock mechanism that locks them in the retracted position without hydraulic pressure, and the later cylinders do not have or need this. This may pose a problem if used on the later model airplanes. The later model airplanes also have a hydraulic accumulator that the early airplanes do not have.

I think that you will have a compatibility issue if you use the early cylinders in a late airplane. Getting approval will be a huge hurdle.

I'm just curious Todd....Did you decide to do the gear door removal or replace the actuators and put the gear doors back on?

Ed

Hey Ed,

Thanks for asking. I decided to replace the actuators and put the gear doors on. I like the idea of having everything enclosed.

The airplane is still in the shop. The work has not been started yet. They are supposed to start on it tomorrow. I'll post a few photos when it's done.

Todd

Ok, good luck. I bet you are anxious to get flying again. I'm with you as far as the gear doors are concerned. I really like the look of the airplane with everything closed up. I certainly can understand the idea of removing them but as for my airplane, so far so good with keeping the doors. (knock on wood)