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Thread: Extending ute/truck chassis? How do they do it?

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    Resident Oaf Jim's Avatar
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    Extending ute/truck chassis? How do they do it?

    How do they lengthen chassis on utes and light trucks? is it even possible to legally do so? There's a whole bunch of legal issues around chassis welding and modification but there must be methods considering there's all these lazy axle kingswood tonners and 6x6 landcruisers...
    Turns out, far too much has been written about great men and not nearly enough about morons


    Quote Originally Posted by seedyrom
    my neighbours called the cops...... not because of the sound of me working in the garage was too loud, but because i taped a cardboard box to my back, covered my self in vaseline and pretended i was a snail on their lawn

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    arboreal bukkake briney's Avatar
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    i have an isuzu truck that has ahd a metre added to the chassis. the cuts were made at an angle, and it has a plate bolted along the outside of the chassis. it looks like it was done a long time ago, and it's standing up fine.
    I didn't choose the thug life.

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    Loving teh titties.. carcrazy's Avatar
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    Working in the truck industry ive seen both, older trucks are usually welded and have long plates also fitted into the rails which are welded or bolted.

    The the newer ones have heat treated rails and cant be welded so they use a staggered bolt arangement with a long u shaped sleave that fits inside the rail and also a flat plate on the outside. The bolts have to be torqued up bigtime and it gets quite technical.

    I remember once i was working on a streched prime mover and the guy who owned it was telling me his life story and how bad it was. I felt terrible telling the poor bastard one of his welded rails had cracked right through and the tray was basically holding it together

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    Opens HoonBoy's Avatar
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    Stretched rodeo for towing?

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    Learner The-Kid's Avatar
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    I've had my Rodeo dualcab extended to fit a spacecab tray on the rear.
    Was done right and done by Custom shop, but there are Chassis aligners/Engineers that'll do it.

    I had the rails cut from underneath the rear door of the cabin, pulled out the
    right length, an internal rail placed inside the two ends and then finally the rail where the gap is done again to match thickness with each end.
    Mounts are matched up for the longer tub, tailshaft lengthened and electrics.

  6. #6
    Resident Oaf Jim's Avatar
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    cheers!
    The question is mainly due to the fact that there's very few small trucks the right length to be converted into a racecar carrier.

    I did see something interesting in Sweden, which was the front half of an Audi CD100 grafted onto a car float, making it a FWD six wheeled audi trayback car carrier. Might work with a sprinter cab van or something.
    Turns out, far too much has been written about great men and not nearly enough about morons


    Quote Originally Posted by seedyrom
    my neighbours called the cops...... not because of the sound of me working in the garage was too loud, but because i taped a cardboard box to my back, covered my self in vaseline and pretended i was a snail on their lawn

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    Registered User GreyBeard's Avatar
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    Quote Originally Posted by Jim View Post
    How do they lengthen chassis on utes and light trucks? is it even possible to legally do so? There's a whole bunch of legal issues around chassis welding and modification but there must be methods considering there's all these lazy axle kingswood tonners and 6x6 landcruisers...
    Completely doable, safe and legal (in Qld), if done correctly.







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    Opens HoonBoy's Avatar
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    If you were going to do that, wouldn't you be better off with a Falcon one-tonner?

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    Registered User 2rismo's Avatar
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    Bob 'Quarter Mile Smile' Shepherd does this for a living.

  10. #10
    Resident Oaf Jim's Avatar
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    cool!

    Falcon one ton is probably a good option considering the "chassis" appears to be sheet steel boxed up.
    Turns out, far too much has been written about great men and not nearly enough about morons


    Quote Originally Posted by seedyrom
    my neighbours called the cops...... not because of the sound of me working in the garage was too loud, but because i taped a cardboard box to my back, covered my self in vaseline and pretended i was a snail on their lawn

  11. #11
    Opens HoonBoy's Avatar
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    One of my "dream tow cars" is an XR8 tonner with a removable rear section that extends the tray enough for towing the car and moves the diff back as well. Would leave a usable length ute for most stuff and a long one for towing the car. Wouldn't be technically hard, after all it is leaf spring, just have two sets of mounts and a longer tailshaft. Don't think the rego boys would be happy with it...

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    Registered User F-Trukin's Avatar
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    There was a slide camper that was made to fit AU tonner that had clip on section with lazy axle behind rear drive wheels..also had a longer tray part if you didnt want the camper on. Cant remember what they where called

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    Loving teh titties.. carcrazy's Avatar
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    I recon an older dyna with a flat tray would be perfect for private towing. Probally just have to make a set of ramps for it.

    Think about it... cheap, easy to drive, easy to get parts for and needs a normal drivers licence.

    Streching is going to need $$$ engineers reports and lots of work.

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    Opens HoonBoy's Avatar
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    Quote Originally Posted by F-Trukin View Post
    There was a slide camper that was made to fit AU tonner that had clip on section with lazy axle behind rear drive wheels..also had a longer tray part if you didnt want the camper on. Cant remember what they where called
    Google is failing me

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    Resident Oaf Jim's Avatar
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    Quote Originally Posted by carcrazy View Post
    I recon an older dyna with a flat tray would be perfect for private towing. Probally just have to make a set of ramps for it.

    Think about it... cheap, easy to drive, easy to get parts for and needs a normal drivers licence.

    Streching is going to need $$$ engineers reports and lots of work.
    yeah its just that the long wheelbase ones are not real common.
    the annoying thing is there is one on the way to work that is perfect in length etc for $1500 that looks in reasonable nick from a distance but I don't have the room or the money right now.
    Turns out, far too much has been written about great men and not nearly enough about morons


    Quote Originally Posted by seedyrom
    my neighbours called the cops...... not because of the sound of me working in the garage was too loud, but because i taped a cardboard box to my back, covered my self in vaseline and pretended i was a snail on their lawn

  16. #16
    is unplugging your matrix aaron_hogan's Avatar
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    Bringing this thread back from the dead.....

    Anyone know an approximate cost to extend an F350 chassis?

    NB:
    Truck delivered running, with no tray or excess bracketry like Gas tank, tool boxes etc
    Spare chassis supplied

    Assumes Tailshaft and brake line will need doing.
    Want it certified by Engineer so VicRoads douche can argue with it. Prefer a one-stop-shop. Drive in/out as a cab chassis.

    Ballpark $'s?

  17. #17
    LS7 Prius = Proper HYBRID Walt Kowalski's Avatar
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    I put two metres into a shitty light Jeep Wrangler chassis. Needs engineer for rego. Worked well too. 25% over each wheel.

    Cheaper to buy right vehicle.

    Boz has one for sale already done

    http://my105.com/listingdetails.aspx?id=13945&latest=1
    Last edited by Walt Kowalski; 25-08-14 at 10:39 AM.

  18. #18
    is unplugging your matrix aaron_hogan's Avatar
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    Quote Originally Posted by Walt Kowalski View Post
    Cheaper to buy right vehicle.

    Boz has one for sale already done

    http://my105.com/listingdetails.aspx?id=13945&latest=1

    For starters that truck isn't extended.

  19. #19
    is unplugging your matrix aaron_hogan's Avatar
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    Already have the F350 and go-fast bits. Looking to do something like the white truck, but painted like the Gunmetal one and 18inches to 2 feet longer in the chassis like the xxx truck.

    http://www.aussiev8.com.au/sale-cars...nana-back.html

    http://forums.v8owners.com.au/showth...ect-2293.html?

    http://www.calaisturbo.com.au/showthread.php?t=139035

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    are hairy dogsballs's Avatar
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    i endorse this thread
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    Manta Manta GTREA's Avatar
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    I had two Isuzu Giga prime movers stretched to the legal maximum limit for a rigid vehicle for transporting bread.

    Overkill really for purpose but Power!!!!



    Both have since been rolled......
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    Huggles Time Don Mega's Avatar
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    Back when I actually liked my Ranger I had evil thoughts about extending it and putting on a single cab ute body. Seems the authorities here don't give a fuck about cutting the chassis and no inspection of the mods are required.

    Turning a front wheel drive whitegoods into rear wheel drive with a 1UZ sounds like a better way to waste my monies...... one day.

  23. #23
    Registered User Splash's Avatar
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    Quote Originally Posted by GTREA View Post
    .. transporting bread.

    Both have since been rolled......

  24. #24
    >Resident Deflamer< 260DET's Avatar
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    Bread rolls?
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    is unplugging your matrix aaron_hogan's Avatar
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    Aww yeah. Nitephyre's Avatar
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    Quote Originally Posted by GTREA View Post
    ... transporting bread.

    Both have since been rolled......
    I sense something seedy going on here!

  27. #27
    Scarce. Gammaboy's Avatar
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    Quote Originally Posted by Nitephyre View Post
    I sense something seedy going on here!
    Looking to get a raise?
    "Where can we get hold of a Vincent Black Shadow?" "Whats that?" "A fantastic bike," I said. "The new model is something like two thousand cubic inches, developing two hundred brake-horsepower at four thousand revolutions per minute on a magnesium frame with two styrofoam seats and a total curb weight of exactly two hundred pounds."

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    CNGAF rowdytoot's Avatar
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    Quote Originally Posted by Gammaboy View Post
    Looking to get a raise?
    Should have seen the bun fight for the wrecks

    see you on the dark side of the moon
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  29. #29
    Scarce. Gammaboy's Avatar
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    Bet there was a bit of dough in it!
    "Where can we get hold of a Vincent Black Shadow?" "Whats that?" "A fantastic bike," I said. "The new model is something like two thousand cubic inches, developing two hundred brake-horsepower at four thousand revolutions per minute on a magnesium frame with two styrofoam seats and a total curb weight of exactly two hundred pounds."

  30. #30
    CNGAF rowdytoot's Avatar
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    these puns about buns are getting a bit stale, doughnt ya think?

    see you on the dark side of the moon
    1998 VT projectfckinwhooshRallyodore-unfinished shed ornament
    2006 D40 STX navara TD of 160 km/hr towing
    1986 AE82 Corolla track hack- Silvertop 20V + C56 with Federal FZ-201s, MRP Coilivers, Ultra Racing lower Arm brace, QFM A1RMs, RDA discs. High 1.15s at Wakefield

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