Do the Dutton-Lainson Boat Trailer Deluxe Roller Bunks Have to be Installed on Bunk Boards

Question

Question:

I have a 2007 Tracker Targa 165 SC boat and trailer setup. The lags on the bunk boards fell out and its time to replace. Im intrigued with going to a roller setup, however I do not want to raise the boat up. For me, it makes no sense logically to attach this product to a set of wooden bunk boards. It seems redundant and unnecessary. Can I just attach these to the factory mounting brackets. The existing mounts are 1/4 welded directly to the frame. I would be raising the boat up slightly more than stock but not nearly as much as putting this product on new bunk boards. see photos Im not 100 sure of the boat, motor fuel weight. I believe these rollers will work and might be overkill. But other models on eTrailer seem too light. The duct tape and zip ties were an emergency repair. As I backed down the ramp I noticed the one bunk board was floating funny and only attached by the last lag bolt.

asked by: Ray C

0

Expert Reply:

If you do not want to mount the Dutton-Lainson Boat Trailer Deluxe Roller Bunk # DL21741 to the bunk boards, there are brackets that can be used.

- Boat Trailer Roller Bunk Bracket for Dutton-Lainson Roller Bunks # DL21742 (4 needed to mount a pair of boards)

Looking at your pictures, your current brackets appear to have a similar bracket/hole placement as the # DL21742 brackets. So there is a decent chance that you can reuse those brackets.

Knowing that you can always fall back to using the # DL21742 brackets, I would just try fitting the Dutton-Lainson Boat Trailer Deluxe Roller Bunk # DL21741 to your current brackets and if they don't work, pick up the # DL21742 brackets.

expert reply by: Scott S

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Boat Trailer Bunk Boards with bolt backing out
(click to enlarge)

Boat Trailer Bunk Boards with bracket
(click to enlarge)

Answer 1

The roller bunks #DL21740 and #DL21742 do not include the mounting hardware. You will want to use corrosion resistant hardware such as galvanized or stainless steel fasteners, since it is for a marine application. The hardware is not included because…

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Answer 2

A minimum of two bolts will need to be used to install each Dutton-Lainson Roller bunk part #DL21741. You can also use the Roller Bunk Brackets #DL21742 to install the bunks. A pair of these are required to install each bunk.

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Answer 3

I pulled a Boat Trailer Roller Bunk Bracket #DL21742 from our warehouse to get the dimensions for you. The overall length is 10-3/8 inches, the length minus the top bracket would be 10-1/16 inches. The height of the main bracket is 7/8 of an inch and…

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Answer 4

The Dutton-Lainson Roller Bunk Bracket, part #DL21742, fits Dutton-Lainson Roller Bunks #DL21740 and DL21741. Four are needed to mount a pair of roller bunks. My contact at Dutton-Lainson advises that u-bolts are not specifically required to install…

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Answer 5

You want to locate the rollers on the frame of your trailer so that they overhang slightly off the back of the trailer so that the boat will contact them before any other portion of the trailer as you load it onto the trailer. I attached a picture…

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Answer 6

For an 11 foot long bunks, using 2 sets of the Dutton-Lainson roller bunks, #DL21741, would work well. The capacity for a set is 3,000 pounds so a 2,000 pound boat should not be an issue. You can use your own hardware to secure the rollers to your…

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Answer 7

So the U-Bolt will secure the CE Smith Light Duty, Vertical Bunk Bracket #CE10603G with the ends pointing towards the back of the trailer. If you look at the picture you took it looks like those fasteners holding your current brackets could be…

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Answer 8

I've had to do this before, so I understand your concern about the carpet getting shredded. What I did was take a sharp utility knife and cut a small X right where I wanted to drill my holes. This worked very well and didn't rip up the…

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Answer 9

You can make loading and unloading your 14-foot Lund onto your trailer a lot easier by adding roller bunks to your existing 2 x 4 carpeted wooden bunks. These can bolt on directly to your existing bunks, even right over the carpet. We offer them in…

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Answer 10

Yes, you could convert your Rolco trailer from the wooden bunks to roller bunks. The Boat Trailer Deluxe Roller Bunk, part #DL21741, has a universal mount system that attaches directly to either vertical or horizontal positioned bunk boards that…

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Answer 11

Yes, you would want to use two sets of 4 foot roller bunks since your current bunks are 8 feet long. I would recommend you go with the Dutton-Lainson Boat Roller Bunks #DL21740. These roller bunks would have plenty of capacity and would be sized…

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Answer 12

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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