We measured the length of the standoffs that come with the Jif Marine Telescoping Gunwale Hook Ladder # JIF53FR and they are 4-1/4 inches long. view full answer...
The distance between the mounting holes on the Sliding Under Platform Pontoon Boat Ladder part # 315-FOG4 left to right on center is 10-3/16". view full answer...
I have attached a diagram I made of the bolt dimensions of the Jif Marine Telescoping Drop Ladder with Hand Grips - 3 Steps - 34" Tall - 400 lbs - Stainless Steel item # 315-EQB3. The pre-drilled mounting bracket with 1/4" holes are spaced 10-1/8" apart. So if you old ladder has a similar mounting style this should work great for your Chaparall Boat. view full answer...
The Sliding Under Platform Pontoon Boat Ladder # 315-FOG3 has mounting hole spacing of:
- 1-13/16" between the holes closest together on the same side and end
- 6-1/4" between the holes closest together on the opposite end of the same side
- 9-7/8" between the holes furthest apart on the opposite end of the same side
- 10" between the holes directly across on the opposite side
I have included a diagram showing these measurements to help understand the spacing. view full answer...
I attached a diagram that shows the various dimensions of Sliding Under Platform Pontoon Boat Ladder - 3 Steps - 34-1/2" Tall - 400 lbs - Stainless Steel # 315-FOG3. The mounting brackets measure 11-7/8" long, 12" from outside edge to outside edge, and the brackets are 1-5/8" wide. I also attached a demonstration video for you. view full answer...
I spoke with my contact at DeeZee about the Invis-A-Rack # DZ951800. She stated that the maximum length of the crossbars on the rack is 69 inches so that is more than enough room for your 51 inch wide Jon boat. I have linked a video featuring this ladder rack for you. view full answer...
The hook depth on the Jif Marine Gunwale Hook Ladder # JIF93FR is 11". This means that as long as your gunwale is 11" or less you would be able to hook the ladder over the gunwale on your boat. view full answer...
When installed, the ladder itself will extend out 16 inches further than the face of the ladder its mounted to. The distance it extends past that will depend on the bikes placed on the rack. I have edited a photo for you showing this dimension.
The bike pedals should be more or less even with the end of the rack arm, but the handlebars will extend out further than that. If this does not provide you with enough clearance, you can loosen the bolt on your handlebar gooseneck enough so that... view full answer...