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Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 84_Chevy_K10, Aug 28, 2001.

  1. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Traded an Edelbrock 1405 and $150 for an SM 465/NP 205. I can't wait to get them installed!!

    Will I need a tranny crossmember or will my 700R4 one work? It's going to be a while before I do the swap, and I'm aware of other issues, but will the crossmember work?

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  2. Chris Demartini

    Chris Demartini 1/2 ton status

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    <font color=blue>You will need a different crossmember, and a clutch setup too. I heard the S10 and 85+ hydro setups are easier to adapt and circle track supliers always have tons of cool stuff.</font color=blue>
     
  3. 84_Chevy_K10

    84_Chevy_K10 Banned

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    I already know about the clutch setup, that's obvious and no big deal.

    What can I get a crossmember from that will work? My truck doesn't have that stupid 2 hump crossmember that later trucks has, just a normal one.

    So what truck would I have to get a crossmember from for it to work easily?

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  4. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Tim, you can use ANY 'flat' type crossmember as long as the 465/205 were used on the same type of member.

    Since you didnt say what year the 465/205 were, I'm assuming a pre-'81. If thats the case, you CAN use your stock 'flat' crossmember.

    The split between the 'flat' and 'double-hump' members is '84 and '85.

    <font color=blue>"Ya don't have to beat it, ya know!!!</font color=blue>

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>http://coloradok5.com/gallery/thatK30guy</a>
     
  5. dyeager535

    dyeager535 1 ton status Premium Member

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    K30 is right. I had the same problem. As long as the crossmember is flat, (like yours) then you are ok. The older ones (73-80) just don't work because the frame is wider or narrower on the 81-ups in that location. You could make them work, but if you've already got the correct crossmember, no worries. Has to be moved quite a bit further forward, again no big deal, just drilling four holes. (at least on my '81 frame)

    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</a>
    No anti-theft measures on your truck? No pity when its stolen
     

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