I just measured it. The mounting cup is 17-3/4" from the aft end, where my stern light is mounted.Thank you think I will go your way! Do you know the distance your mounting cup is from end of coming?
Thanks
Dennis
By the way, I installed a Tiller Riser, which lifts the tiller off the laz. I didn't like the way it dragged across the top of the laz. Got it from Rudder Craft. I don't see them on their web site anymore, don't know if they're still available, but if you like that idea, it should be easy to fabricate something similar. Legs fit under the tiller more easily with the added height.
The PO installed stainless steel rub strakes, across the front edge of the laz, so the tiller would slide on those instead of the fiberglass top of the laz. I added another one in front of the motor well, even though they're not needed for that purpose anymore, they look pretty good. You can see the one on the laz in the pic above.