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  • drive shaft fell outta my truck

    the rear drive shaft fell outta my truck yesterday, the universal joint shattered. fixed that. now im thinking my gears are hooped too...

    In park the truck will roll foward or backwards. the drive shaft just spins when its in D or R. when i put it back in park ( i beleive its the fly wheel?) somthing makes a weird, dont know how to explain it noise, not really grinding but spinning, pretty sure its the fly wheel. I have the old school guages, the bar kind (88-92 or somthing?) when its in reverse the spedomerter sits at 20km/h, which is revs right?

    im lost, none of my buddies know, next thing i gotta do it take it to the shop any advice asap would be aaaaawesome
    90 SCSB Stepside 4x4 350, 14 Bolt, K&N filter, TB spacer
    92 Mustang 347 H/C/I

  • #2
    Re: drive shaft fell outta my truck

    Sorry man, your rear end has grenaded.

    Either:
    1. Oinion gear broke
    2. Ring gear broke
    3. Spider gears broke

    Or some combination of all three. I have had this ahhpen a few times to me. Its a bad feeling seing that drivehsfat spin while the truck sits still.

    Pull the rear cover and see what carnage is inside.

    You will need to get someone to rebuild your rear end.

    if you ever wanted to do a rear gear swap, now might be the time to do so.

    EDIT Nevermid about the ratio change, I just realized you have a 4x4. If you change ratios, you ahve to do both teh front AND rear gears, unless you NEVER use 4wd EVER.

    At least you can drive it to the shop. Just throw it in 4wd and away you go.

    Goodluck
    peace
    Pauly
    Last edited by Pauly; 09-01-2006, 06:46 PM.
    97 GMC 2wd RCSB 5.7, s10 2700 footstall, Hooker 24621hkr LT's , 2.5" cats dual 4"pipes exit B4 pass. side tire, custom driveshaft 3.42 G80 FIPK MAF descreen GM/Mercruiser Marine intake manifold 29lb LS2(EV6) injectors Ed Wright PCM(best mod), LT4 KM 14.8@94mph 2.007 4000lbs 122mph

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    • #3
      Re: drive shaft fell outta my truck

      4x4 doesnt work either....in 4hi, 4lo, doesnt work at all, when i throw it in reverse it sounds like it clunks into gear, but it doesnt move.:bash:
      90 SCSB Stepside 4x4 350, 14 Bolt, K&N filter, TB spacer
      92 Mustang 347 H/C/I

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      • #4
        Re: drive shaft fell outta my truck

        I did the same thing in my truck here a few years back. It happened when i was running along at about 75-80. Cept, when i did it, the DS didnt fall out until i got stopped. The vibrations took out the tranny, pissed me off, it was a fairly fresh tranny too....
        Originally posted by Sierra Stud
        I'm an idoit :read:
        2005 Silverado 5.3 Z71
        Coming soon: Corsa, BlackBear Tune, vette servo, color matching, small JL System

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        • #5
          Re: drive shaft fell outta my truck

          so my tranny is my problem?
          90 SCSB Stepside 4x4 350, 14 Bolt, K&N filter, TB spacer
          92 Mustang 347 H/C/I

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          • #6
            Re: drive shaft fell outta my truck

            Originally posted by Savier
            so my tranny is my problem?
            I didnt say that, i was just sharing my experience. Maybe something to check into...
            Originally posted by Sierra Stud
            I'm an idoit :read:
            2005 Silverado 5.3 Z71
            Coming soon: Corsa, BlackBear Tune, vette servo, color matching, small JL System

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            • #7
              Re: drive shaft fell outta my truck

              k i took the cover off, the gears are fubar'd...

              its a GU6, 3.42 right? could i get a 3.73? and if so how much would one be?
              90 SCSB Stepside 4x4 350, 14 Bolt, K&N filter, TB spacer
              92 Mustang 347 H/C/I

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              • #8
                Re: drive shaft fell outta my truck

                you can get a 3.73 but you have to regear the front too...twice the money
                1990 rcsb 5.7 4x4700r4 10-bolt 3.73
                mods:
                auburn locker
                helper bags
                7.5' meyer
                activator II
                266/75/16 bfg a/t's
                14bolt sf 3" BL and 33" bfg a/t's comming soon

                proud member : OBS Hood Whacker club

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                • #9
                  Re: drive shaft fell outta my truck

                  Sorry about the rear end. i recommend upgrading it. No reason to rebuild a weak unit. Look around for a 2500 6 lug truck and use that rear differential It is a semi flaoting 14. Real soldi rear diff unless you go more than a 36 inch tire.

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                  • #10
                    Re: drive shaft fell outta my truck

                    If it wont move in 4wd then your transfer case or tranny is fubared also.

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                    • #11
                      Re: drive shaft fell outta my truck

                      i'll have 33" geolander mts soon. shall i stick with 3.42?

                      how much would regearing the front and back be? roughly?
                      90 SCSB Stepside 4x4 350, 14 Bolt, K&N filter, TB spacer
                      92 Mustang 347 H/C/I

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                      • #12
                        Re: drive shaft fell outta my truck

                        for 33's i'd go to 3.73 for the best results, but your 3.42 gears should be just fine. ive heard on here a good estimate is 600 for both axles, but i'm not sure. if you lived closer i'd help you with the rear axle gearing.
                        95 2 door yukon 6.5L turbodiesel 4x4 for sale.
                        84 chevy k30 with a 454, gonna be my offroad truck.

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                        • #13
                          Re: drive shaft fell outta my truck

                          alright. its in the shop, they say its the tranny. a wrecker wants 900$ cnd for a used TH700. does that sound alright? or should i be able to find one cheaper then that i also need a rear end
                          90 SCSB Stepside 4x4 350, 14 Bolt, K&N filter, TB spacer
                          92 Mustang 347 H/C/I

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                          • #14
                            Re: drive shaft fell outta my truck

                            I wouldn't spend $900 on a used trans, just get yours rebuilt.
                            1998 Tahoe LS stock with 285/75 Terra Grapplers

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                            • #15
                              Re: drive shaft fell outta my truck

                              just over 1000$ to get it rebuilt
                              Last edited by Savier; 09-09-2006, 02:59 PM.
                              90 SCSB Stepside 4x4 350, 14 Bolt, K&N filter, TB spacer
                              92 Mustang 347 H/C/I

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