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Setting up Trailer..... Questions on Bunks and Rollers
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<blockquote data-quote="LDUBS" data-source="post: 489178" data-attributes="member: 21536"><p>I agree with MNFisher, except I would say other than the one under the bow, no weight should be on a rear or intermediate keel roller. Like you said in your original post, add a roller towards the rear to help guide the boat. I would not add one to take any load. </p><p></p><p>Here is my reasoning. The roller is a hard point. It will be almost impossible to have the weight distributed evenly with the bunks and that rear and/or intermediate roller. Any movement (bouncing) and you risk putting a divot in your keel. Think in terms of a three legged stool. One leg too short it is still stable. Four legs with one too short and it will wobble. Your boat is in contact with two bunk boards and a bow roller (3 legs). </p><p></p><p>About lengthen the bunks, IDK other than don't the brackets normally mount on a trailer cross member? I would think Alumacraft would have some guidance. I think you already know all of this, but whatever the length, make sure the bunk extends an inch to two past the transom and that the transom is fully supported. For my boat, the maximum weight on the bunk is at the transom. That is per my boat maker's guidance.</p></blockquote><p></p>
[QUOTE="LDUBS, post: 489178, member: 21536"] I agree with MNFisher, except I would say other than the one under the bow, no weight should be on a rear or intermediate keel roller. Like you said in your original post, add a roller towards the rear to help guide the boat. I would not add one to take any load. Here is my reasoning. The roller is a hard point. It will be almost impossible to have the weight distributed evenly with the bunks and that rear and/or intermediate roller. Any movement (bouncing) and you risk putting a divot in your keel. Think in terms of a three legged stool. One leg too short it is still stable. Four legs with one too short and it will wobble. Your boat is in contact with two bunk boards and a bow roller (3 legs). About lengthen the bunks, IDK other than don't the brackets normally mount on a trailer cross member? I would think Alumacraft would have some guidance. I think you already know all of this, but whatever the length, make sure the bunk extends an inch to two past the transom and that the transom is fully supported. For my boat, the maximum weight on the bunk is at the transom. That is per my boat maker's guidance. [/QUOTE]
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Setting up Trailer..... Questions on Bunks and Rollers
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