Roller Bunks for Bayliner Boat Trailer with 8-Foot Bunk Boards  

Thanks for the photo. Honestly 5 inches of clearance from the fender to the top of the tire is fine if that is what you desire. We normally recommend 4 inches to allow for the suspension travel whether with leaf springs or torsion axles to allow…

You can absolutely replace your carpeted rails with roller bunks on a boat trailer. You are going to need either the 4' Roller Bunks #DL21740 or the 5' Roller Bunks #DL21741 along with the Boat Trailer Roller Bunk Brackets #DL21742, of which…

Roller bunks don't help the water level rise, but they do help with getting a boat on or off a lift. Because your current bunks are 8 foot, you can use 2 sets of the Boat Trailer Deluxe Roller Bunk - 4' Long - 10 Sets of 3 Rollers - by…

You can refer to the linked diagram for a general idea of where the axle should be positioned on a trailer. The idea is to place the axle relative to the overall weight load so that the trailer's tongue weight (TW) is in the range of about 12% of…

We have roller bunks in 5 foot and 4 foot sections so we'd easily have a solution that would work well. For 5 foot long sections you'd want the part #DL21741 or for 4 foot sections you'd want the part #DL21740. For the 8 foot section two…

You can mount the fenders directly to the trailer frame through the fender skirt on the back of the fender. I would recommend using large washers if you drill through the fender skirt and attach the fender directly to the trailer frame. If mounting…

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…

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…

What I recommend for you is exactly what you have suggested. Use a total of 2 sets, 1 set of each center bunk, to reach the 8 feet you need. These will secure directly to the tops of the existing bunks. You will not need to replace the bunks. I have…

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…

Seal 171255UC has an inner diameter of 1.719 inches and outer diameter of 2.565 inches. A seal that has those dimensions would actually be #58846. I've added a link to a video review of this seal for you to take a look at.

If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will…