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wondering about trannies

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by newbe73, Mar 22, 2002.

  1. newbe73

    newbe73 Registered Member

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    ok here we go, i am planning on get getting a 454 big block so what i was wondering what kind of tranny i have and t box i have and if they will hold out . if not witch i was told what tranny should i get to handle that much Tork and have overdrive, and also if that t box wont handle it what will, because i am ganna take a brows threw the junk yard. I am just kinda wondering what would be the best for me i am mostly a off road guy but i also would love to smok some of my freend on the streets

    from,
    chris
     
  2. newbe73

    newbe73 Registered Member

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    if not overdrive that woul be cool to i am just wonterin what would work dgoood for me, but i kinda woudl like od
     
  3. zakk

    zakk 1/2 ton status

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    a raptor 700 if you got the $$$ or a TH400 mated to a 205

    if you got a built-to-the-hilt TH350 it would work, but it is just asking for trouble, espeically if you want to "smok some of [your] my freed" out on the pavement.

    TH400+np205
     
  4. reddog64

    reddog64 1/2 ton status

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    I agree a TH400 with a NP205
    A TH400 and a NP203 will do but go for the 205
     
  5. newbe73

    newbe73 Registered Member

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    how much money would the 700 cost and could i find her in the junck yard
    and what is the diff between th400 and that outhe 700
     
  6. DesertDueler

    DesertDueler 1/2 ton status

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    You can find a 700r4 in the yard, but it will most likely junk, and you need to spens alot to get it built to hold up. I would deninatly say a th-400 and either a NP203 or a NP205
     
  7. zakk

    zakk 1/2 ton status

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    a raptor T700 can be had for the muble sum of $1500
    and as previously posted, most junkyard 700's are exactly that...not worth the effort to find the 1 in 100 that is in good shape, only to have your BBC toast it in 3 months.
     
  8. DesertDueler

    DesertDueler 1/2 ton status

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    If you go the 700r4 route, go buy it from a chevy dealer, that way you get a 3yr/50,000 mile warranty. I have smoked one of the GM cert. ones and they replaced it for free, no questions asked /forums/images/icons/smile.gif The only t-case that will bolt right up are NP208 and the NP241. Ohters bolt up with adapters ($$$)
     
  9. TopOff

    TopOff 1/2 ton status

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    You could get a stick.

    Just my .02
     
  10. RESTORE89

    RESTORE89 1/2 ton status

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    had a corvette back in 85 with a 400hp+ sbc with a 400 tranny and went through 3 rebuilds and sold it with the 400 still running strong. even did stuff like hold 3000 rpm and dump it in drive, just to watcth the wheels smoke, or downshift at 40 mph to 1st to bark the tires on the way down, and that thing lasted through it all. only draw back is no OD, but you could probably have an aftermarket OD install, just guessing on that though.
     

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