Here was the problem. I could never trim my drives for optimum performance. One drive was always too high or low. Because the indicators each have a cable running to them they would never be accurate due to cable stretch, mounting locations, and lengths. Spending a lot of time heads down trying to sync drive height and rpm is not a safe place to be while driving a boat.

Here is the solution. I talked to Mike at Marine Design Corporation and bought a MDC Drive Sync for my boat. This year has been great running with it. The drives sync up automatically to the same height every time. I am now spending time looking outside the boat driving while going faster then I have ever gone in the boat before because of the efficiency of the drive positions.

Installation and set-up were simple. This is a great product.

Thanks to Mike and the Team at MDC.

Next big project for my boat will be MDC Drive Guardians.

I purchased the Drive Sync for the same reason, to get the drives perfect and concentrate on what is ahead of me. Excellent product and install was very easy, the owner even called me to get feedback. Money well spent.

Guys - tell us about the install. Plug and play or something I'll need time for after season is over.

Install is easy and straight forward.

I mounted the box above the trim pump panel into the fiberglass. I used four screws to make sure it stays put, but you could use just two if so inclined.

Power and control wires connected to trim pumps. Wiring ran to back of motors to trim plugs and connected. Mercury harnesses labeled so they are easy to find.

Follow the instructions to set up and your done. System retains programming even if disconnected from power. It's that simple.

All wiring harnesses are included. MDC did a fantastic job on the harnesses and control box.

You will need screws and cable ties to secure the box and wiring harnesses.

It is a couple of hours to install and secure harnesses just because of having to go in and out of the engine compartment.

Now go out and run it using only the single trim switch on the throttle. It's like night and day running now.

^ Exactly, 1 night after work and you got it installed. I did run into a suggestion for MDC to add 2-3 ft more of the harness going to the control unit. In my 38 Staggered by the time I went around the engine bay and mounted above my trim pumps the wire was stretched as far as it could go. Terry, I don't think the 42 engine compartment is much or any bigger than the 38. Just have them add to the wiring for some room to work with. Running at speed is great not worrying about tapping the drive switches. Combine the Drive Sync with dual throttle switches (1 for drives, 1 for tabs) and you never have to take your hand off the throttles. MDC also makes a Sync System for the tabs. I didn't need it for the tabs but nice if you are constantly adjusting them for whatever reason.

Sounds good - thanks guys!

TM

Just purchased one also ,cant wait to install it!looks fairly simple.

Purchased one a while ago - had some issues getting it to work, Mike from MDC very responsive and got the issue resolved, works great!
Thanks Mike!

One of these MDC DriveSync systems is next on my 'must buy' list. Tired of indicator cables failing and trim pump speeds being uneven. Awesome solution!

so you need the trim position sending unit on the drive?what are you guys w/ hp transom assemblies doing?I have no senders on my drives,,just cables.