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Thomas, The Bennett Auto Tab Control will not work with your Lenco Trim Tabs. The wiring for the two systems is completely different. The Lenco basically has to electric motors and the polarity is reversed on the wires to them to make them operate up or down. The Bennett system has one motor...

Peter, We have a shim for the hydraulic power unit that will help you out with this. I think it's about 15 degrees. If you send me your address and phone number I would be delighted to send you one at no charge (other than shipping if I can't fit it in a mail bag). Tom McGow Bennett Marine

Peter The actuator on the M120 attaches to an angle in the middle of the Trim Tab. You should be able to install it against the angle in the same way it's attached to the "lip" on the Trim Tab shown in your picture. If the ends of the zinc hit the part of the M120 that angles upwards you...

Peter, Did you buy the disk type? The best way to install these is to mount one half of them on the top of the Trim Tab (no need to put half on the bottom, and it will just cause drag). Put it between where the actuator (ram) is attached to the Trim Tab and the hinge on the transom pretty...

Matt, Thanks for the kind words, they are appreciated! Tom Bennett Marine

Tom, Normally, if purchased from Bennett as Dropfin units the fins would be one piece with the Trim Tab, simply folded down in the same shape as the add ons you see in the picture. It's a nice clean design. The add on units are designed to be installed on flat Trim Tabs, without the up fins...

We actually make some hinge plates with a hole cut in them for a scupper, but the one in the photo looks too low. I think it would interfere with the "curl" of the hinge itself, so I can't recommend cutting it. Tom Bennett Marine

Tug, While we would normally want to see the Trim Tabs about 3" or so from the chine, the ones in the picture are still outboard enough that they will likely give adequate side to side control. It's a lot better than not having them or moving the scupper. . . Tom Bennett Marine

Dauntless, 3" Dropfins make a pretty big difference in the lift a Trim Tab will generate. We only make them in 12" chord (fore to aft measurement) Trim Tabs. The additional lift they make is more noticeable on shorter span (side to side measurement) Trim Tabs, such as a 12 or 18 inches...

Thanks Tom, The lip does not stick out too much but it will sightly limit the total downward deflection of the Trim Tabs. On thing we have done in these instances is to to make a small mounting block the same width of the shim on the bottom for the actuator (ram) to sit on the transom. This...

Tom, The maximum stroke is 3-1/2". It's important to note that the maximum amount of deflection you will want in a Trim Tab is about 20 degrees, any more than that and the amount of drag produced starts to offset any additional lift generated. Do you have a photo of your transom and existing...

The standard stroke for Bennett actuators (rams) is 2-1/2". We do have many other length and stroke actuators to fit different installations. The actuators that come as standard with the M120s are shorter than our other kits, making it easier to install them in limited spaces. The over all...