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90 or 91 suburban

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by bigreid, Mar 8, 2002.

  1. bigreid

    bigreid Registered Member

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    Location:
    Anchorage, Alaska
    I have a dilemma, I am looking at a 90 suburban with as blown out 350. The truck has 205,000 mi and the owner just bought the truck 2 months ago and his kids ran it out of oil. I think I can get it for $500, I expect a lot of wear parts to replace.
    I am also looking at a 91 in great condition with 92,000. Is there any differences that make the 91 a better option. I am in this for the long haul and will replace and enging in the 91 when it goes. My 90 K5 has 180,000 (about odometer stopped at 167.000) and runs like a champ with no oil leaks.
    Thanks for any tips or suggestions.
    Adam
     
  2. Blue85

    Blue85 Troll Premium Member

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    Location:
    Grand Rapids area
    Let's just clear this up, you are planning on keeping the 90 K5, right!!

    I know they made some changes to the TBI throttle body at some point, but I don't know if it was between these years or not. What is the running gear on the two subs? If either one is a 3/4-ton, buy that one.
     
  3. Bone85K5

    Bone85K5 1/2 ton status

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    We have had both 90 and 91 K5's and suburban's. I cannt think of anything that makes one better than the other.
     
  4. Diesel Dan

    Diesel Dan 1/2 ton status

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    Location:
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    A 1991 3/4 ton 'burban will have the 4L80E trans. the 1990 would have the TH400. Both should have NP241 cases.
     

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