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what overdrive is it

Discussion in 'The Garage' started by MEGALADON, Feb 4, 2005.

  1. MEGALADON

    MEGALADON 1/2 ton status

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    can someone tell me if the 82 GMC 4x4's came with a 200-4 or 700-4 trans
    and what the type stock transfer case they came with. thanks
     
  2. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    200R4's had the BOP bellhousing behind buicks, Oldsmobiles, and Pontiacs.
    Any 1982-'95 1/2 chevy will have a th700R4 if it is an auto 4 spd and a small block in front of it.
    An NP208 backs them up until '89.
     
  3. MEGALADON

    MEGALADON 1/2 ton status

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    is the NP208 a good case? for light duty. My plan is to put the overdrive

    back in with a stock 454 from a 78 GMC 1 ton in my 82. THANKS

    Do I have to be a member to send private messages, I dont know
    the ropes here, as I am new, with a million questions :D
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    2004R is most commonly seen with the dual bolt pattern bellhousing, Chev and BOP. There were Chev specific ones.

    No, they didn't come in trucks, they are a 2WD only trans.
     
  5. sweetk30

    sweetk30 professional hooker Premium Member

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    best be getting a BIG reman spec unit for the 454 to not kill it.
     
  6. MEGALADON

    MEGALADON 1/2 ton status

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    you mean a whole trans, or parts?
    I take it I should stay with the 350 trans.
    Even a stock 454 will hurt it. :(
     
  7. sweetk30

    sweetk30 professional hooker Premium Member

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    454 will kill much faster than 350 or 400 will in my book dont like them. i do the full swap and go 4l80-e my self for the combos i run thay are a 400 with od and are masive units. that will hold 454 no problems.
     
  8. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    The 208 is a fine case, it will take pretty much any amount of punishment you can put to it without banging it against a rock and it will probably be fine if it doesn't have a ton of miles on it. The aluminum case housing is a little weak and can crack under constact with something but the internal chain can take a lot of power, and drag from tires.

    Your Th700R4 tranny will not like being behind a BBC, especially since it's an '82 which is considered the worst year for them. They were so bad though, that chances are yours has been upgraded. If it has infact been updated with very low mileage you could add a shift kit and get the correct gearing in the axles and probably not have any problems for quite a while.

    There are lots of aftermarket manufactures that offer beefed up versions of the TH700R4. I have a built up one myself and lives plenty happy behind my built 406sbc that makes more power than a stock 454. THey are VERY good trannies under the right conditions.
     
  9. MEGALADON

    MEGALADON 1/2 ton status

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    the 700R-R4 is from a 91 camaro rs.

    But im starting to get the message
    this swap might be a bad idea :(
     
  10. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    It won't work. There is a difference between a 2wd and 4wd tranny. Obviuosly the camaro will have a 2wd case, with your '82 having a 4wd case.

    If the camaro had a V6 the tranny will have one clutch less in every pack vs. the V8 version.

    Not neccessarely. It depends on how much money you want to spend to make everything right. With the truck being an '82 it is already setup for a Th700 so that is easy and the 454 will bolt in fairly easy, far as I know. If it was me I would use the stock th700R4 that is in the '82 and install the 454. Run it but have the money aside ready for a quality rebuild fora built 700.

    There are plenty of people running BBC's in front of built Th700's. Also like me, there are even more guys that have built SBC's easily surpassing th power of a stock carbed 454 in front of TH700r4's.
     
  11. MEGALADON

    MEGALADON 1/2 ton status

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    thats the problem, I have no idea what happened to it.
    the camaro had the v8 tbi setup.
     
  12. dirtwarrior17

    dirtwarrior17 Banned

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    common sense tells you that if you drive it like drag car on the street then punish it offroad it will die real quick but your problem is the low end torque of a big block. Unlike a smallblock(unless its built like a beast) bigblocks have a relativly flat torque curve that comes on all at once so it will stress the 700 more than a sbc that has the same peak numbers would because it's more of an instant power with the bigblock, where a smallblock will make the same power higher in the powerband and not as violently. As long as you don't mash the throttle over and over I don't see why the camaro 700 wouldn't live for a respectable while if you don't over heat it, but if you wheel like most people on this site do you can expect to find yourself at a tranny shop in a month or two.

    Just my 2 cents....
     
  13. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    The 700 out of that Camaro will live just fine, where ever it goes, which wont be behind his 454 since it is a 2wd transmission. Do you know the difference? :p:
     
  14. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    Well this presents you the option of going with a new unit from a reputable company that is built and will easily handle a stock 454. Like I mentioned, the camaro tranny will not work.
     
  15. dirtwarrior17

    dirtwarrior17 Banned

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    forgot about that

    Edit-
    guess i was right the first time
     
    Last edited: Feb 8, 2005
  16. Jonny-K5

    Jonny-K5 1/2 ton status

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    this is what i'd do. most of the companies that build performance trannies dont have a core charge either. you can build a 700 to handle BB power. check out this site

    www.700r4.com

    i got my tranny from them, great people. check out thier site and give them a call. they will either reccomend the level 3 or 4 version, depending on how mild your BB is. they are very knowledgable and can steer you in the right direction
     
  17. Jonny-K5

    Jonny-K5 1/2 ton status

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    by the way, ill take that camaro 700 off your hands for ya. dont want it cluttering up your garage now that u dont need it.:D
     
  18. MEGALADON

    MEGALADON 1/2 ton status

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    This is a great cpmpany, they sold me all the parts to convert my
    81 vette to the 700R-4, best mod i did.

    I just wanted to put this overdrive in my truck since I already had it,
    the motor to. Maybe i will just stick to the 350 trans :) .
    I'm thinking my next mod's will be a 4 inch lift with 33x12 1/2
    and 15x10 inch rims :D
     
  19. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    Why would you want to go with a 350 trans? You would have to modify things to get the 350 to work since it is designed for a TH700R4. If I have gathered correctly you have NO transmission right? I would get a TH700R4 to put back in where one was before and go ahead and use a 454 if you'd like.

    Your lift and tires sounds good to me.
     
  20. MEGALADON

    MEGALADON 1/2 ton status

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    LOL, I have a 350 trans in it now, I put the 91 camaro 305 in the truck
    and 3 month later blew it up :D that was just with regular freeway flying.
    I kept the trans from the camaro to, cause it had pretty low miles, I knew one
    day I would want to put it in the truck with the 454, and get better freeway
    gas milage. But I do have a 350 trans in it now, and with the overdrive I knew
    I would get better off the line pep. :grin:
    I may just go ahead and put the 700R-4 in and see how long it last. I know there will be no offroading going on.

    [​IMG]
     

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