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building a cargo hitch rack...

Discussion in 'Gen 2 Prius Accessories & Modifications' started by 05azprius, May 15, 2011.

  1. 05azprius

    05azprius New Member

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    hey,
    i'm going on a trip next month in the prius and decided to build a cargo hitch rack.

    first off i am far from a perfectionist, and far from being a "great" welder...but i have yet to have any welds i've done, break.

    so anyways i was initially thinking about building one of the small harbor freight trailers (40x48), but then i would have to worry about lights, trailer tires, the trailer light plug kit, etc...

    so i decided the cargo hitch rack would be a better idea, no need for lights...no extra bs to worry about.

    i just started today, i'm building it with junk i have laying around, the first picture shows the hitch tube and the beginning of the bottom of the frame. the hitch tube is some 1 1/4" square tube i got off of an old gate. the framework is from a bedframe (1/2" angle iron?).

    second picture shows the top side with the floor in, and above that is the top section.

    third pic shows the bottom side with the bracing i put in.

    i need to source some another bed frame or more steel for the sides but when it's finished it'll be 46" wide, 16" long and 16" tall, enclosed box. the top lid, rear panel, and sides will be diamond plate, the front (facing the bumper) will just be thin blah sheetmetal. the rear diamond plate will have stripes of the reflective red tape or something of that nature. and it will not block the tail lights, or license plate at all, or hinder opening the hatch. i'm hoping the whole unit is under 40lb.
     

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  2. 05azprius

    05azprius New Member

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    had time to work on it some more today.

    i build the sides and put the top on, i added a support for the frame (though probably un-needed), and i put also added screws to the floor and back panels. i also drilled the holes for the diamond plate and cut the diamond plate, and put the first coat of paint on.

    tomorrow morning i'm going to put the second coat of paint on it, and then mount the diamond plate, and start working on a lid.

    p.s. the first 2 photo's were just of the top/sides sitting on there...not welded or set in place/leveled.
     

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  3. 05azprius

    05azprius New Member

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    is my topic actually that sucky that no one has any thoughts? even a "you suck" reply would be appreciated! .....feeling lonely here.

    heres some more pics of progress....got the sides on, put on a weather stripping from a hyundai sonata trunk....caulked it. painted over the caulk after i took the photo's. also built the lid, installed hinges, and a lock clasp. just gotta do one more coat of paint on a few spots, and put on the reflective tape and it's done.
     

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  4. snijd

    snijd DIY or die

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    I do not know how many folks have gone this direction to carry cargo. I bought an aluminum hitch rack, in an effort to minimize weight. I then purchased a waterproof bag which exactly fits the rack. This solution works for me. In addition, I added skis to the mix for one trip. This kept stuff off the roof, and I noticed very little loss in mpg. I'll be curious to hear what your final configuration weighs. It looks well-designed and built.
     
  5. 05azprius

    05azprius New Member

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    i started with just a cargo rack with the intentions of doing the same thing you did, then i had left over metal and a fully enclosed water tight holder was born. not sure the weight, i am guessing around 40-50lb, i'll weigh it once it's fully completed.
     
  6. dustoff003

    dustoff003 Blizzard Brigade #003

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    I like it! It makes me happy when someone knows what the want to make/do and then the actually do it.
    It looks nice are there any similar commercially available products? Maybe you could have made the frame and placed a ready made box or somekinda plastic tote on top? Ah but then you would not have had the fun of creating what you made.

    Is your bed on the floor and is your other car missing a trunk seal?

    Posted from my iPhone via the Tapatalk app.
     
  7. 05azprius

    05azprius New Member

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    heh. putting tile in the house...hence mattress outside. and no my friend owns an impound yard...so i snagged the seal off a junker.
     
  8. 05azprius

    05azprius New Member

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    well here it is done....as soon as the paint is fully dry i am going to test fit it and will post pics of it on the car.
     

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  9. Ryanpl

    Ryanpl Active Member

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    Ok I'll say it... YOU SUCK :)
     
  10. 05azprius

    05azprius New Member

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    thank you!!

    here it is on the car. looks goofy but, anything on the back of a prius is going to look goofy.
     

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    1 person likes this.
  11. BAllanJ

    BAllanJ Active Member

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    Do you pull a trailer sometimes? I'm wondering because this looks like it would be more stable if it wasn't supported only on one centre hitch point. Couldn't you more securely attach it to two brackets at each end of the bumper that, in turn, attach to the same frame points that the hitch attaches to? It could be lighter for the same strength.
     
  12. richard schumacher

    richard schumacher shortbus driver

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    God help you, and the guy behind, if this thing ever falls off in traffic.
     
  13. 05azprius

    05azprius New Member

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    ballahj: not a bad idea but it is very stable.

    why would it fall off? looking at the pathetic factory welds of other units, you could put a motorcycle in it upright and i bet it would hold...i welded everything on both sides, i added structural supports, and a tongue support, along with a safety chain.... i'm not a moron just for reference.
     
  14. 05azprius

    05azprius New Member

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    had it on the car all day today.... due to the fact that i built it under the plate and between the tail lights....you cannot see it at all in the mirrors/rear window, so it could be bad if forgotten that it's there, otherwise it works wonderfully, and over 72 miles on the freeway i averaged 42mpg (which is what i always get...without the a/c on....my mpg sucks!)

    i've also revisioned from one center safety chain, to a mildly tightened chain/turnbuckle on each side of the unit, from the middle frame supports to the hitch which adds to it's stability/strength aswell. i'm pretty sure the car would fail to hold weight in it before the welds would break or it would fall off.
     
  15. 05azprius

    05azprius New Member

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    finished the turnbuckle/hook addition today, also weighed the box while i had it off, kind of disappointed, as it's 61.4lb, the rated tongue weight of the hitch is 200lb... luckily the stuff i intent to put it in is about 40lb so i should be around 50% tonque weight rating.

    i also climbed in it while it was on the car....just because. i'm 180lb, it held me just fine, no bad noises or anything of that nature, and it didn't move side to side at all. overall i'm very happy with the outcome, just a bit unhappy with the units weight but thats my fault for Overbuilding it.
     

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  16. Hal W

    Hal W New Member

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    Excellent job. Should carry most of your gear. I put mine on top in a tot box by Yakima. Is handy but it does effect the FE. Hal
     
  17. Den49

    Den49 Member

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    Thanks for sharing this project with us. The box looks very well made. Very handy.

    One suggestion regarding the rear visiblity of the box. If you mount a couple of short antennae on the rear corners of the box or lid, they will remind you of the box and aide you in not backing into something with it. I use the same sort of thing on a small trailer when I use it without the stake sides.
     
  18. 05azprius

    05azprius New Member

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    i thought about that....my issue however is that (while i love my car), the prius is already considered to be a rather 'gay' car. add a cargo box on the back and it's gay X2, now you add little antenna's to the back of said box....you just hit gay X2.5.... i just don't know that i can handle another .5 increase :-X (while the rating system is obviously fictitious, cosmetics are the actual reason i would rather not add such things)
     
  19. Hal W

    Hal W New Member

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    Get one of those cheap back-up camera's that you plug into the 12v socket. They work? Hal
     
  20. 05azprius

    05azprius New Member

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    was thinking about one of those wireless ones...i put the new dash in the other day, steam cleaned the carpet (again...since it gets dirty in 5 minutes) again yesterday and i scotchguarded it today...so now it sits drying. i need to find the little speaker cover that goes in the dash...but having no luck and the dealer wants $35 for it (it's just a simple speaker grille!), and i'd really like to get a new steering wheel air bag or even a false cover as i will Not be hooking up the air bag.