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10bolt ?

Discussion in 'The Garage' started by chevystepside, Sep 18, 2003.

  1. chevystepside

    chevystepside 1/2 ton status

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    found a 10 bolt out of a 94 chevy 1/2 ton truck with auburn and 4.56grs. any know what the width from backing plate to backing is? and also spring perch width? and/or will it bolt into my 89 k5 jimmy? i would measure it myself but its about 1hr away from me in denver.
     
  2. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    nope, wont work because:
    1. I think the spring perches are different widths
    2. Have you ever noticed that the tires stick way out on lifted new trucks? It is because the rearend is wider. Chevy changed their rim style on the later models. The rear would stick out much further than the front on your truck. If it is a 2wd go for it because the width of the 2wds stayed the same as the old trucks.

    --------------------
    85K5,3/4ton,14boltFF,10bolt, 9"lift,35"boggers, 16.5x14 welds, big horse 406SBC/700R4 /forums/images/graemlins/k5.gif /forums/images/graemlins/angryfire.gif
     
  3. dyeager535

    dyeager535 1 ton status Premium Member

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    [ QUOTE ]
    Have you ever noticed that the tires stick way out on lifted new trucks? It is because the rearend is wider.

    [/ QUOTE ]

    Aer you sure thats not because the owners buy wheels with the wrong backspacing?

    The rear end of his '89 is 3" narrower than the front axle, stock, so how much wider is the "new" rear axle than the old ones?

    You aer also saying they use two different rear axle assemblies for the 2wd and 4wd trucks? That would involve a lot of additional parts I can't see GM spending money on.

    Not saying it's not the case, as GM does a lot of dumb things, it just doesn't seem logical.

    Only reason I'm concerned is that the later rear axles (in the future when the trucks start falling apart) would be great axle swaps to get rear disks for those of us whose 10 bolts are strong enough.
     
  4. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    I am positive. I had 15x10 wheels with 33x12.50 a long time ago and they didn't even stick out in the back. On newer 4x4's they stick out a few inches. Next time your driving around look closely at a stock newer 4x4. The rim bolts almost flush with the ouside of the rim/tire sidewall to the axle. For some reason they didn't do this on the 2wds. As for making things more complicated. Look at what it takes to pull a motor out of a new chevy pickup compared to a 70's pickup, huge difference. I don't think GM or any of the manuf. care.
     
  5. chevystepside

    chevystepside 1/2 ton status

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    ya i do remeber the way chevy changed the rim style. can i take the auburn and gears out of the 94 10 bolt and install them in my 89 10 bolt? thanks for the info
     
  6. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    If you are a trained gear specialist. /forums/images/graemlins/deal.gif
     
  7. chevystepside

    chevystepside 1/2 ton status

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    setting the gears to spec in my housing is no problem. wasnt sure if manufactor changed the internals of the 10 bolt 89-94 vehicles. man i wish that 94 housing would have just been a direct bolt in. oh well cant get lucky all the time i guess.
     
  8. Pookster

    Pookster 1/2 ton status

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    Spline counts might be different. THere was that transition year, from 28 to like 30 spline...
     

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