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? About 9012's in the rear ...

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by SlyDog, Dec 23, 2001.

  1. SlyDog

    SlyDog 1/2 ton status

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    ? About 9012\'s in the rear ...

    Hey, can I install rs9012's in the rear without any shock mount modifications? This is for a 4" lift ...

    <font color=green>[​IMG]1977 K5 GETTIN IT AWN[​IMG]</font color=green>
    BUILT NOT BOUGHT
     
  2. TheGeneral

    TheGeneral 1/2 ton status

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    Re: ? About 9012\'s in the rear ...

    Hell you can do anything you want. I think min measure is like 19.5 and max is 32.25, Your compression would be the issue to look at. You could do it for a little while, then mod the mounts, so you could get the 9012's in the beginning and then just mod the mounts later, that way only paying for shocks once

    If you ain't hurt, you ain't playin' hard enough.

    The General
     
  3. wayne

    wayne 3/4 ton status

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    Re: ? About 9012\'s in the rear ...

    I have to agree with Joel on this. On the back with stock mounts 9012's should not be a problem.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  4. SlyDog

    SlyDog 1/2 ton status

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    Re: ? About 9012\'s in the rear ...

    But compression would be an issue right? Would you reccomend I should go with a smaller shock If I decide to stick with the stock mounts? What rancho shock would it be? Thanks!

    <font color=green>[​IMG]1977 K5 GETTIN IT AWN[​IMG]</font color=green>
    BUILT NOT BOUGHT
     
  5. wayne

    wayne 3/4 ton status

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    Re: ? About 9012\'s in the rear ...

    I don't see why compression would be an issue since it will only compress so far just like any other shock. I think the key is how much extension it will have. With 9012's the shock will not bottom out so that will be good. The weak link to the whole thing is the factory upper shock mounts. They have a habit of breaking.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  6. HarryH3

    HarryH3 1 ton status Author

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    Re: ? About 9012\'s in the rear ...

    Compression is the main issue, because the shock mounts (and the shock itself) were not designed to be used as bump stops. Slam the shock fully closed, with the full weight of the truck and something will break. [​IMG] You want the axle to hit the bump stops before the shocks bottom out.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
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  7. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Re: ? About 9012\'s in the rear ...

    Yeah, if you have enough flex to botom any shock out in the rear you'll shear a mount off. Upper or lower depends on which mount is the weakest. I busted an upper drivers side and a lower passenger side before I relocated the shocks...and that was with rancho's for a 4" lift. Both times the mounts busted at full compression when the shock bottomed.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  8. TorkDSR

    TorkDSR 1/2 ton status

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    Re: ? About 9012\'s in the rear ...

    just mount the upper shock bushing to the header with some ducktape. i had a friend who did it and it lasted for a million years and he wheeled 900 hours a week. but sometimes he overexaggerated.

    beligerence doesn't justify intelligence.
    <font color=blue>wheelers hate posers.</font color=blue>
    <font color=red>79k15/400/700r4/205/38.5</font color=red>
     
  9. 55Willy

    55Willy 3/4 ton status

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    Re: ? About 9012\'s in the rear ...

    Should upgrade to a new shock mount[​IMG]

    <font color=red>Life is like a mud hole:</font color=red><font color=blue>
    When the S#!T gets deep, you have to keep moving and friends can always pull you out</font color=blue>
    55 Willy's
     
  10. SlyDog

    SlyDog 1/2 ton status

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    Re: ? About 9012\'s in the rear ...

    Without upgrading the mounts, what shock should I get for the rear? Part number appreciated [​IMG]

    <font color=green>[​IMG]1977 K5 GETTIN IT AWN[​IMG]</font color=green>
    BUILT NOT BOUGHT
     

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