Compatibility of Aluminum Boat with Roller Bunks on Trailer Instead of Bunk Boards

Question

Question:

I called up the place that sold me my trailer that I am having issues with and they told me that rollers damage the bottom of aluminum boats. Are these safe to use on my trailer for my 2008 grizzly tracker 1860 SC, or will they do some damage to the bottom?

asked by: Jack E

1

Helpful Expert Reply:

The Boat Trailer Deluxe Roller Bunk - 4' Long # DL21740 will be safe to use on your trailer with your 2008 Grizzly Tracker 1860 SC aluminum boat. You can see in the attached video that they are used for and aluminum boat.

Damage can only really be caused by user error like overloading a boat while on the trailer. The roller bunks have 3 rollers as opposed to two rollers so the weight will be better distributed and there are rollers every 9.6 inches on center so you will not have issues under normal use.

expert reply by: Jason S

1

Answer 1

The B78-13 tires you mention convert to metric size 175/80-13. The 175/80-13 tires are available in three load ratings. B: 1100 lb at 35 psi C: 1360 lb at 50 psi D: 1610 lb at 65 psi You would choose the load rating based on the capacity of your…

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Answer 2

No worries, you can easily construct some bunks yourself. Go to your local lumberyard and get some treated yellow pine 2x4x10 boards. You can then purchase some of the marine-grade carpet we offer, like part #CE11372. You'll need one roll…

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Answer 3

You can simply mount the Boat Trailer Deluxe Roller Bunk, part #DL21740, by just screwing or bolting it in. The mounting brackets, Boat Trailer Roller Bunk Bracket, part #DL21742, are optional in mounting part #DL21740, and are not required. If you…

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Answer 4

The Boat Trailer Deluxe Roller Bunks like part #DL21740 will add about 2-1/2" from the height of the bunk board. This should really not pose many issues but you may be able to adjust the bolster brackets or swap them out for a lower profile…

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Answer 5

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 6

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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Answer 7

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 8

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 9

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6-1/2 inch whereas the 225/75-15 fits widths that are 5 inch to 6 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 10

The three most common lug stud sizes for a trailer are 1/2"-20, 9/16"-18, and 5/8"-18. In order to make sure you get the correct lug nuts you need to measure the lug studs on the trailer now as we have no way to look this up for…

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Answer 11

The 12 inch tires that we carry are rated for 65 miles per hour. Any faster than that for extended periods and the excessive heat build up will cause tire failure. To get a tire with a higher speed rating you would have to go up in size. That also…

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Answer 12

Good morning, Cliff. As of today (3/27/24) we are expecting the #KE33JR tire/wheel combo to be in stock in about 2 weeks. Hopefully this means we can take our own pictures and put them on the site within maybe about 3-4 weeks from now. What I can…

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Compatibility of Aluminum Boat with Roller Bunks on Trailer Instead of Bunk Boards

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