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Composite tail shaft. WHY,WHY,WHY?????

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  • Composite tail shaft. WHY,WHY,WHY?????

    Can anyone tell me why the rear tail shaft in composite and not just metal??

    I cannot find a reason why. Well in my brain anyway.

    My tail shaft ATM.
    No warning just twisted up.

    .Previously an NP GLX 3.8 auto RIP
    NS VRX DiD auto. RIP.

  • #2
    Because they are half the weight and actually much stronger. They run them in F1 and race cars.

    In saying that though, they are not as durable as steel for obvious reasons.

    Shame about the shaft Goodsy, probably not gonna be cheap for a new one
    97' NK 3ltr GLX LWB Manual | 3" lift | Wildcat headers | K&N air filter | 2.8 crawl gears | 4Terrain clutch | 2.25" exhaust | Factory locker rear | TJM 10,000lb winch | TJM snorkel
    97' NL GLS LWB Auto | 6G75 3.8ltr | Redback Headers

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    • #3
      I know. Not cheap. Going to try insurance. Did a front CV as well. Was on and easy track too.

      Looking at the shaft and removing it I reckon they save 1kg at most??

      What are my options? Drive shaft joint and and metal, balanced conversion?
      .Previously an NP GLX 3.8 auto RIP
      NS VRX DiD auto. RIP.

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      • #4
        We used a lot of carbon in boats, and at first when the technology was new we were very skeptical. As time went on we came to realise that weight for weight carbon is WAY stronger, and WAY stiffer. You can build things out of carbon that would be impossible in steel, the steel simply would not be strong enough. To build a metal tail shaft at the same weight would mean a really thin wall, and it would fail just the same as yours has.
        That said I am unsure why they would use carbon in a short tail shaft, my only guess is they were wanting to have a lighter, stiffer shaft to deal with a harmonic vibration issue.
        I'm also unsure what caused your failure, but if it was dropping the car onto a rock hard enough to break the carbon, then, chances are you would have bent a steel tail shaft.
        2013 NW GLX-R Factory Locker, TC mod,Dual Battery, 240V inverter, Anderson Plug, Fire Extinguisher. GME TX3500 UHF Radio, MM Alloy Bar, ORU 12000lb Winch,EGR mod, Fancy wheels, 33" Pirelli ATR Tyres, LRA Aux tank, Custom bash plates & Rock sliders, Ultra Gauge, ARB Compressor, LED Light bar, little mods around the cabin. Kings Std Ratecoils & Ultimate Shocks, Firestone HP airbags, Airteck Snorkel, Hema 6. Towing: Starcraft outback

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        • #5
          A metal tail shaft would have a small dent and soldier on. But carbon fibre being as it is.....
          .Previously an NP GLX 3.8 auto RIP
          NS VRX DiD auto. RIP.

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          • #6
            Dent yes, small maybe, the vibration would be interesting though. But you are correct is saying when carbon fails it does it properly, there is no limp mode!
            2013 NW GLX-R Factory Locker, TC mod,Dual Battery, 240V inverter, Anderson Plug, Fire Extinguisher. GME TX3500 UHF Radio, MM Alloy Bar, ORU 12000lb Winch,EGR mod, Fancy wheels, 33" Pirelli ATR Tyres, LRA Aux tank, Custom bash plates & Rock sliders, Ultra Gauge, ARB Compressor, LED Light bar, little mods around the cabin. Kings Std Ratecoils & Ultimate Shocks, Firestone HP airbags, Airteck Snorkel, Hema 6. Towing: Starcraft outback

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            • #7
              I've heard of a lot of Ford Falcons snapping theirs but yours is the first I've seen on the Paj. Perhaps you could try a wrecker.
              2007 NS VRX Cool Siver, Mitsu Alloy BB with spotties, MM towbar, Family Pack, ARB Awning, Duel battery with Optima yellow top starter, Bushskinz intercooler and sump combo, 2" lift with Bilstein shocks and HD Lovels, Ultragauge (Sold 2014)

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              • #8
                Would a haft out of an NP/NM bolt in??

                Jords it twisted like a wet newspaper.

                Tell me about the weight thing again. Has to be another reason. Front is steel.
                .Previously an NP GLX 3.8 auto RIP
                NS VRX DiD auto. RIP.

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                • #9
                  If you were gonna go steel you would ideally go with a chromolly shaft.

                  If you have a driveline specialist like http://www.driveline.com.au/ as I have near me then that would be my first stop except for maybe a wreckers.


                  I watched a doco on a factory that made the carbon fibre wound shafts, they are unbelievably much stronger then the steel or chromolly ones.
                  97' NK 3ltr GLX LWB Manual | 3" lift | Wildcat headers | K&N air filter | 2.8 crawl gears | 4Terrain clutch | 2.25" exhaust | Factory locker rear | TJM 10,000lb winch | TJM snorkel
                  97' NL GLS LWB Auto | 6G75 3.8ltr | Redback Headers

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                  • #10
                    A place in dandenong dd a few ahafts for my lux few years back. Still have there card and will go back. first the cv..........
                    .Previously an NP GLX 3.8 auto RIP
                    NS VRX DiD auto. RIP.

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                    • #11
                      Was told by Mits parts manager, it down to weight. All to try and make the truck light for mpg etc.

                      There's a post on here somewhere? About a chap on the South African form replacing his with custom made steel prop. Font think it was that dear.
                      2003 DID Shogun, 10mm Alloy bash plates, OME suspension, sliders, Set of BFG AT 265x70x16 & 235x70x16 Insa Special Track Extreme muds.

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                      • #12
                        Originally posted by Goodsy View Post
                        Would a haft out of an NP/NM bolt in??

                        Jords it twisted like a wet newspaper.

                        Tell me about the weight thing again. Has to be another reason. Front is steel.
                        NP is 'plastic' too. Front is metal though.
                        NS shorty 3.8l petrol with winch, front/rear E-lockers

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                        • #13
                          Goodsy, Gold Coast wreckers told me about a $200 for a good SH one a while ago when I got my front shaft of them......I asked just out of curiosity. They're pretty good on their freight too. That was for an NM but I think they would be the same.
                          02 NM 3.5v6 auto Exceed, seq gas inj,265/75/16 Wild Peaks,16x8 Ballistic alloys, 2.5" cat back, wild cat headers, Lovells HD/TJM Gold Series,30mm coil spacers in rear, dual batt, TJM/bushskinz, 4x4 equip axe & shovel holder, rev cam, 50L Waeco, Megapulse, poly airs, Safari snorkel, K&N, MM alloy b/bar, Roo Lite's, 21" light bar,remote mount UHF, extended breathers, ARB comp, Maxtrax, RTT, Batwing awning & much more!

                          my videos http://www.youtube.com/user/michealmannion?feature=mhee

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                          • #14
                            Wow! That's the second one I've heard of breaking in the 13yrs they've been around

                            Bad luck, Goodsy, but I really think they are pretty dam good.
                            Cheers, John.
                            LC200 V8 goodness

                            MY12 LC200 GXL 4.5Lt V8 twin turbo, GVM upgrade, ARB bar, Warn winch, Outback Acc rear bar and dual carrier, TJM sidesteps, Bushskinz, Long Ranger 180Lt tank, Black Widow drawers, cargo barrier, Polaris Awning, +++
                            Ex - NM auto, 2"Kings, Bilsteins, Buckshots, Wildcat headers, 2.75" Mandrel bent exhaust, Injected LPG, Smartbar, Scraper bar, Bushskinz, Custom steps, Dual Batteries, Breathers, Black Widow drawers, Polaris Awning.

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                            • #15
                              Ouch! not good mate! only know of a couple that have failed though so if you can pick 1 up from a wrecker I'd go that way.. got your text this morning mate, sorry about the early text back but it's called silent mode if you wish to sleep in

                              Gus.
                              VX 200 Series 4.5L Twin Turbo-Diesel V8 Landcruiser HERE
                              NM Exceed 3.2 DID Auto Pajero. (SOLD) With a few Mods. HERE

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