Aluminum Vertical Bunk Brackets and Stainless Steel U-bolts for Boat Trailer

Question

Question:

I bought a new boat trailer for my heavy 26 Shamrock Mackinaw. I modified some large beams to accommodate the curve of the haul and height of the stern so now I need to replace the L-type brackets. The trailers crossmembers are 3x3 aluminum. The stock L-type brackets are only 6 galv. with galv. U-bolts. I would rather use aluminum brackets with SS U-bolts, but Im worried about strength. I am also worried about corrosion if I used new galvanized brackets and my galvanized U-bolts. I need 4 - 8 and 4 - 10 brackets, carpets and bow support. Thank you in advance for your expertise

asked by: Don L

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Expert Reply:

The vertical bunk brackets do not have a weight capacity rating. You should be fine with the aluminum, but if you are concerned about the strength then you can stick to the galvanized steel the manufacturer used.

- Replacement CE Smith Vertical Bunk Bracket # CE10161A40 (8")

- Replacement CE Smith Vertical Bunk Bracket # CE10162A40 (10")

- CE Smith U-Bolt - Stainless Steel # CE15503A

We do have bunk carpets and bow support options as well, without knowing what size bunk boards and what bow support you need, I have listed some options below:

- CE Smith Deluxe Marine-Grade Carpeting for Bunk Boards # CE11330

- Yates Y-Style Bow Stop for Boat Trailers # YR7Y44-4

- Bow Roller Assembly w/ Bells # YR450BLK-400BLK

expert reply by: Scott S

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Answer 1

If you're going to go with stainless U-bolts, go with the 316 stainless if you're using the trailer in a saltwater environment, the extra molybdenum in the 316 will do a better job of resisting corrosion. The CE Smith #CE15503A is the…

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Answer 2

The vertical bunk brackets you referenced do not have a weight capacity rating. The aluminum ones item #CE10161A40 are regularly used and should be fine, but if you are concerned about the strength then you can stick to the galvanized steel ones,…

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Answer 3

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Answer 4

I agree it is the right time to upgrade to a Lithium charger/converter as not all are Lithium compatible. I recommend using the Progressive Dynamics Mighty Mini AC/DC Panel and Converter/Smart Charger - 60 Amp #PD4060K which is a replacement for your…

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Answer 5

I would be happy to help you set up your 2022 Toyota Highlander to haul your new travel trailer. The wiring harness you currently have controls your trailer's lighting functions only. You do not need to rewire your Toyota you just need another…

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Answer 6

While we may have an option for you, we do not have the exact specs on your Allis grease seal part number 5013 29772. However, with the 1.6" ID and 2.5" OD measurements you provides, that is very close to our #58846. This particular grease…

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Answer 7

Thank you for providing the specs for the suspension components that you already have. Correct hanger spacing really depends on the components being used such as springs, hangers and equalizers. Most of the hanger spacing dimensions that we have are…

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Answer 8

To tow your trailer that uses an RV style 7-way blade style connector with your semi that has a 7-pin connector, you need to construct an adapter that will also combine the brake signal into the right and left directional signal pins. This can be…

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Answer 9

The AL-KO trailer hub part number 8700 that you have is a 3,500 lb trailer hub/drum with a 5 on 4-1/2 inch bolt pattern. Based on that the #AKHD-545-35-EZ-K is the correct fit and would work great.

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Aluminum Vertical Bunk Brackets and Stainless Steel U-bolts for Boat Trailer

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