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HDT BUNK CONVERSION TO BENCH SEAT !


trainbuff57x
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Hey All ,

  New to the Forum .I have a nice Freightliner Columbia 120 Toter , Looking to change the lower Bunk to a Bench seat for the lower section, Has anyone had any experience with doing this, ie; what type of seat ?, where to acquire one ?, problems encountered while doing this ect. ?  I would like to have seat belts incorporated in this project, I also just bought some Rear windows for that model that I am planning on installing, 

Any tips ,Ideas or leads will be Greatly appreciated,

   Thanks,

    Mike M.

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So IMO you might consult your state's RV statutes regarding passenger restraint. If the statutes state that passengers can move about while in motion, then the seat and seat belts can likely be sourced at automotive or off road performance outlets. But again, that's just my OPINION on it, I'm in no way an authority.

 On the window, if you scroll down or go back to page 2, you should see a thread about installing sleeper windows.

 

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Some people have used jack knife sofas, conversion van seat, made their own, and in our case, I simply made a fold up seat back that I can use the bed as a seat or still as a bed. We added four sets of seat belts to the back wall with extra long belts to use for the seating. On the Freightliner's watch out for the AC/heater unit under the passenger side of the bed, that may cause issues with trying to fit a generic seat in the back.

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I installed a rear bench seat out of a medium duty truck.  It was slightly narrower than my sleeper so I built end tables with cup holders and hidden storage on either side of the bench.  The framing for the seat was installed with four bolts (drilled holes through the floor of the sleeper).  The bolts have large fender washers to keep everything in place.  This worked with my rear AC equipment that was under the old bed.  I have also mounted an AGM battery bank and inverter under the seat.  The seat has three integrated lap belts.  It works very well and was easy to do.  I have pictures of it in the truck link in my signature below.

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I got a jack knife sofa from: https://rvsurplusparts.net/ They are close enough I didn’t have to ship it.

Seat belts from: https://www.seatbeltsplus.com/category/Conversion-Van-Seat-Belts.html  I used conversion van belts because I had to go fairly high up to attach the shoulder belts. There are also two lap belts in the center that are setup so you can have two small seats or one larger one.

You can find my build thread here: Moresmoke’s HDT  there are a few pictures of the cab work towards the end.

 

 

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I altered the hinge height on my upper bunk so it swings down perfectly to form a backrest for the lower. Both bunks still usable separately.  Lower bunk is one side mattress, other side carpet, & the safety net on the lower now forms a net for my Sibes.

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Behind the white seat is the HVAC for the sleeper so It sits ahead a little farther. But, I can slide the others ahead to get them in a row if I want and they all still recline. Check out my thread about installing windows in your sleeper get them in before you finish your interior.

Edited by jenandjon
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Hey All,

Thanks for all the replies, I just took delivery of 2 good used windows out of a Cascadia from "My Little Salesman" a truck salvage place in Maryland,

I have't decided on the seat/seats for the rear yet still in research mode, I'm getting backed up with things to do on the rig , I have front springs/shocks, rear air bags and an oil change to get too, then I will get to working on the rear of the cab, This rig is going to be used for trips mostly so I have a few months to get the cab done,

JJ The pictures are great, I will check out your post ,Thanks,

Aprreciate all the imputes

Mike M..

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  • 2 weeks later...

Great Ideas and pictures All I still haven't decided what I will go with , I am working on other things now for a trip coming up in 2 weeks, but will do this project in the spring when I get a nice block of time, The sofa looks Great !!! what was the source for it , if you remember Fire Guy,

Thanks,

    Mike M.

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Pretty sure it was camping world.   You pick the parts and build what you want.   We obviously went with the middle seat and console but could have just put an armrest or a skinny seat in as well in the middle.   A little on the pricey side but we figured if it didn't work well or we ever sell the truck,  we will move it to the 5th wheel and get rid of the crappy rv couch/hid-a-bed.  I really need some windows though like jenandjon did. 

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