3500 Camper install

mobilelists · April 11, 2022

I am in the process of having a slide-in camper build for a 2022 3500 SLE Double cab, Long bed, 4WD. One question is what is the largest size that will fit to the end without the tailgate installed?

So if I were to create the largest box 5 feet tall that could slide into the truck bed and just come to the end of the bed with the tailgate removed, would it would be

98.27 inches long (The inside length of bed is 98.27 in. off a sheet the dealer showed)

and 50.55 in.wide (the inside width between the wheelhousing is 50.55 in.off the same sheet from the dealer).

Thanks

Edited April 11, 2022 by mobilelists
spelling

Another JR · April 11, 2022

Seems like maybe you’ve answered your own questions, but I have my camper off my 2021 3500 hd srw right now and could take bed measurements if you’d like. I have the factory sprayed-in bedliner.

mobilelists · April 11, 2022

My concern is that the dimensions are actually for the case of the tailgate attached and closed. I really need from inside the bed to the end of the taillights so I maximize the camper size.

Another JR · April 12, 2022

This picture was taken with the end of the tape measure against the front wall of the bed at the floor. The top rail of the front wall extends rearward into the bed 2 inches. So your bumpers are against the lower front wall and the rail is 2 inches closer to the front wall of your camper. Figure accordingly. It’s 101 inches from the lower front bed wall to the end of the sheet metal behind the tail light the tail light itself protrudes another inch.

mobilelists · April 12, 2022

Thank you! I have been unable to find a long bed at any dealer near me.

Another JR · April 12, 2022

I’m happy to do measurements, pictures, or answer questions. It’s easy right now when the camper is out. I went through the same kinds of questions when I was trying plan an installation without the products in front of me.

mobilelists · May 30, 2022

I finally got the truck!

New question, what's the best way to route a couple 1/0 cables under the truck to the truck bed? Should I use metal conduit or loom?

Thanks

gemarsh · May 30, 2022

1 hour ago, mobilelists said:

I finally got the truck!

New question, what's the best way to route a couple 1/0 cables under the truck to the truck bed? Should I use metal conduit or loom?

Thanks

You could use liquid tight conduit or even aluminum armor flex conduit. They would be the best of both worlds.

Another JR · May 30, 2022

I’m curious why you are running such large wires to the camper. Dedicated second alternator?

Edited May 30, 2022 by Another JR

mobilelists · May 30, 2022

7 hours ago, Another JR said:

I’m curious why you are running such large wires to the camper. Dedicated second alternator?

I did order the 2nd alternator and battery. In this case, the camper has a lithium system that can take a lot of current. I am starting out with a 60amp battery to battery charger and if necessary there is room for a second.

mobilelists · May 30, 2022

7 hours ago, gemarsh said:

You could use liquid tight conduit or even aluminum armor flex conduit. They would be the best of both worlds.

I was considering thin walled metalic tubing but now that I actually have the truck, I see that the need to make a lot of bends to follow around the obstacles on the passenger side. The aluminum armor flex conduit would make that easy. I was hoping that there would be more gaps to thread wire ties but it is surprisingly free of holes along the run. Just want it safe and away from possible contact with tall brush.

Thanks

NWStever · May 30, 2022

Split loom will be adequate and reliable as long as you carefully route and secure the cable along the same path as OEM wiring follows on the frame to back of truck. Do, however, make sure you provide sufficient slack to accomodate frame twisting and bending especially in the area between the cab and bed.

Edited May 30, 2022 by NWStever

mobilelists · June 7, 2022

I asked this question another thread but the answer may be within this group. I have the upfitter switches installed and working. Now I am trying to figure out how best to fasten a t-fuse holder and a relay in the engine compartment. From there to the truck bed is not a problem.

Which locations and mounting methods have worked best for others? I am using a Blue Sea Systems 5502 Class T Fuse Block and a relay.

Thanks

Edited June 7, 2022 by mobilelists

mobilelists · July 2, 2022

Been prepping truck for camper. Amazed at the size of the truck. For the first time in many years I had to get a soft fender cover to prevent scratching while reaching in to work on stuff. I find it a pain to get to some of the connections on the firewall short of building a platform over the engine.

To make it easier...does anyone know the thread size of the ground bolt on the driver side near the area that the upfitter cable feeds into the cabin? The near mirror image on the passenger side serves as the ground point for the batterry. It is very hard to access.

Thanks

Another JR · July 3, 2022

Don’t know the thread size but just wanted to make sure you noticed the more easily accessible large ground studs outboard of the fuse box on the left side. I used one of them for the supply to my 30 amp dc to dc converter.