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700R4

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by radar, Nov 28, 2001.

  1. radar

    radar Registered Member

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    If my 700R4 has a 3-4 pack in how do i know and what does that mean.
     
  2. tori89k5

    tori89k5 1/2 ton status

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    What exactly are you reffering to ? Yes. I does have a 3-4 clutch pak

    1990 K5 4" lift, 33's, 3.73's Raptor Tranny and Velvet Rides....
     
  3. BobK

    BobK 1/2 ton status

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    Location:
    Petrolia,Ontario,Canada but working in Port Huron,
    A 3/4 clutch pack refers to the clutch pack that holds the power during the 3rd to 4th gear changes.They fail frequently in stock 700R4's.You'll see H/D 3/4 clutch packs advertised.They increase the number of clutches in the 3/4 clutch pack, this is suposed to reduce the failure rate as there are more clutches to take the abuse.Only way to know if you have a H/D 3/4 clutch pack is to take the tranny apart and count the clutches,The H/D units should have 7-9 clutches.I think stock 3/4 clutch packs only have 4-5 clutches.

    <font color=green>BobK<font color=green>
     
  4. Blazinit

    Blazinit Registered Member

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    I may not be able to tell you if you have it, but if it runs in and out of OD like mine does, then you DEFINATELY know you don't!

    '84 K5 Blazer 4"Rancho R/B w/Quad Diamond Back front 350/TH700r4/NP208/35" BFG AT/10 bolt F&R
    Washington, USA
     

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