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Tranny/adapter questions.

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by mountainexplorer, Aug 20, 2004.

  1. mountainexplorer

    mountainexplorer 1/2 ton status

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    I have a few basic questions... I didn't search, but hadn't noticed seeing direct answers to any of these recently.

    And, I know, some are so basic, they're stupid.

    Is an SM465 to NP208 adapter the same as the newer style round pattern NP205 to SM465?

    Whats the length difference in a '70s 465/205 combo verses a newer style round pattern NP205/465 combo?

    Is a 454 flywheel off a '96 454 any different than an early '80s 454 flywheel?
     
  2. 1979jimmy350

    1979jimmy350 1/2 ton status

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    Ann Arbor Mi
    the fly wheel will be different because the later motors are one peice rear main seal that started around 1991 i think
     

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