I installed a complete dual ram single bravo drive set-up according to the instructions. Once installed I noticed that the port cylinder was fully collapsed but the starboard was not fully extended the same thing happens on the other side. Hopefully this is correct is this the norm??? Jp

Sounds like the math is off somewhere? So long as the ram that is fully in isn't being crushed because the other ram isnt thru it's travel yet if you catch my drift it should be OK. Otherwise it will want to push itself thru the transom. The rams should be mounted to the transom at the point that is in the center of their travel.

Yup center the ram then mount it. The way you are now any time you try a full over turn it will put a huge amount of stress on the gimbal.

So he has to fill and redrill the holes?

I am not sure it is possible to mount the rams so that both reach the end of their travel at the same time. Two factors mess up the math. One is that the rams do not connect to the centerpoint of the drive, second is that the pivot of the gimbal is spaced out a few inches but the rams are mounted close to the transom.

Not sure if this will help, but I did a spreadsheet to model some of this. I can modify this for a single engine without too much work. I can start on this this weekend.

Excel Spreadsheet

Got any pictures of it

Trust us it works. On a twin ram set up the rams are mounted at equal distance from the centerline of a single drive and at the same point right and left on a twin drive connected by a tie bar. Both drives swing in tandem. They do not swing to different points. Recheck your math. It's a matter of mechanics, it works and it's the only way.