So I should just put the seat clamp in and Don't worry about the mountoobuck said:What effect will that have on the center of gravity will it make it tip easier
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**** manoverboard said:Those clamp on seats are dangerous enough without raising the center of gravity!
If you are even going to give it a try, make sure to secure the legs that go down over the seat with some type of bracket so that the whole assembly can't lift off the bench.
I got my screen name from one of those clamp on seat bases that wasn't secured and ejected me backwards into a river at night when it came loose! #-o
It look just like thisoobuck said:How wide is the boat and stable currently
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Can I see a pic of itoverboard said:Something to consider, I just did it to two of mine to install 3/4" pin seat bases.
I cut an access hole in the front of the bench using a 1 1/2' hole saw and then a jig saw cut across the top and bottom of those 2 holes to gain access to the bottom of the bench. Then I drilled 2 pieces of angle with holes that matched the holes in the bases I was going to install, and then drilled a 2 1/4" hole to install the pin base and the mounting holes in the bench.
OK, here's the trick! I used a piece of thin wire and a small washer through the middle hole of the angle and the middle hole on the bench to hold it in place after I slid it through the access hole so I could get the first bolt started, also taped a piece of narrow aluminum I had laying around onto the wrench to extend it so I could reach under far enough. THEN-put a small piece of electric tape over the box end of the wrench, sticky side up, and pushed the nut into that so that it would stay in the wrench until I got it started. You also don't tighten any bolts until you have both sides in place, just get nuts started to hold things in place, then tighten them all down.
When all done I made a plate out of thin aluminum to cover up the access hole.
You could also put an aluminum plate on top of the bench to further strengthen the seat mount. By installing a pin base you also have the option of the lower seat plus installing the extension and having the raised seat with plenty of strength in the base.
I KNOW: the clamp on is much easier, and I'm a glutton for punishment, but the bases I installed aren't going anywhere! [emoji38]
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