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292 6-cylinder in a 4x4 Crew Cab?

Discussion in 'The Garage' started by mountainexplorer, Sep 20, 2005.

  1. mountainexplorer

    mountainexplorer 1/2 ton status

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    I'm looking to get an '81 era 1-ton 4x4 Crew Cab. It has what looks to be a factory 6-cylinder in it (4.8 liter 292ci). It also has a TH400/205, and no tag on the 60 front indicating gear ratios. The story is that it used to be a truck owned and used on the Alaskan Pipeline.

    What was the last year GM made a 292?

    And would a 292 in a Crew Cab this size be any different than any other 292?

    I'd also assume with a 6-cylinder that the truck would have come with 4.56 gears. Would you bet on 4.56s or 4.10s?
     
  2. 73k5blazer

    73k5blazer Unplug the matrix cable from the back of your head Premium Member

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    According to some sales lit I saw, 1985 in the US, and 1986 in mexico were the last year for the 292 I6.
     
  3. Hossbaby50

    Hossbaby50 3/4 ton status

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    I would put my money on 4.56's. I believe most if not all factory 3/4 and 1 ton trucks came with 4.56 gears.

    Harley
     
  4. sweetk30

    sweetk30 professional hooker Premium Member

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    fixed it for ya. as most come this size:p:
     
  5. tarussell

    tarussell 1/2 ton status

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    Most base trucks came with standard gearing with a 292 and it was 4.56's.
    GM say's it last put a 292 in trucks as late as 1990 but I believe that was in the "P" series trucks . The 292 was offerd in Mexico at the end of its production run but i do not know what was the last year....
    The 292 in that truck should be no different than most others. It should be a cast crank with twelve counter weights as opposed to the earlier six counter weights cranks that were used. It should have a multi-groove harmonic balancer that is more sought after in the in-line crowd.
    Those motors are tuff as nails but no speed demons in stock form.
    Tom
     
  6. Hossbaby50

    Hossbaby50 3/4 ton status

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    I ment with 6 cylinders. I forgot that part in the statement.

    Harley
     
  7. afroman006

    afroman006 1/2 ton status

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    I had a 1 ton 2wd crewcab that had a 292 in it. It was a 1980 and had 4.10s.
     
  8. u2slow

    u2slow 1/2 ton status

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    Dremu's brochures show 292 availability as late as '88 in the R/V series. P-series may have held on slightly longer, but I'm sure the intro of the 4L80E in '91 would have put it out of its misery. (a 292 with an auto is sacrilege :shame: )

    The late ones were "Hecho en Mexico" as already mentioned.... these included a 2.5" outlet exhaust manifold. :eek1: Good luck finding one.
     

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