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Flat belly with a doubler.

Discussion in 'The Garage' started by cegusman, Jan 31, 2007.

  1. cegusman

    cegusman 3/4 ton status

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  2. miniwally

    miniwally 1/2 ton status Premium Member

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    You don't have to flip the 203 up side down to get the belly flat but you do have to rotate it 90 degrees from stock mounting.
    I know ORD makes one with the 203 rotated flat along with the 205.

    I don't know about the rest of the doublers.

    I would guess that NWF has something.

    The old WMS doublers put the 203 in upside down. I don't see why when rotating it 90 degrees the right direction puts the shifter on top of the case and eliminates leaks around the shifter.
     
  3. SCOOBYDANNN

    SCOOBYDANNN 1/2 ton status

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    I have the 205 rotated flat with the 203. I also raised the entire drivetrain about 2" over stock. with all new body mounts and a 1" body lift I still had to cut out the floor above the 205. The body over the 203 was fine. I could have made a flat belly as my crossmember is the only thing hanging below the frame, but I am not worried about hitting the crossmember. Front driveshaft angle is OK (still stock), I had to grind the CV quite a bit but it seems to be holding togather. Ther rear shaft is at a bad angle and I need to get a high angle (to drive at highway speeds) shaft, but seems ok at low speeds. it is also still stock.

    [​IMG]

    [​IMG]
     
  4. cegusman

    cegusman 3/4 ton status

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    How low do you think it would have hung if you did not raise the whole drivetrain? Really would like to avoid that.
     
  5. RGV72BLAZER

    RGV72BLAZER 1/2 ton status

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    like i tell everyone, the NWF doubler is the way to go when clocking. check it out here: http://northwestfab.com/203-205adaptor.html this is what i'm running for my 203/lo max doubler set up & the options are astronomical :eek1: .

    IMG_0053.JPG
     
  6. SCOOBYDANNN

    SCOOBYDANNN 1/2 ton status

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    with the 205 clocked flat to the 203 in the factory location (as in the drivetrain not lowered like when you have a 6" lift) i would guesstimate it at about 1" below the framerails. which you could plate it and be just as low as I am.
     
  7. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    My NV4500/203/205 (NWF) is about as flat as Scooby's is. Pretty much just beefy X-member below the frame. My 203 is straight up, and my 205 is rotated 3" up...plus I pulled the drivetrain itself a little more up too. I also had to hack my floor a fair bit even with a 1" BL. My front driveline is great with 1410's at either end. The angles are better than they were with my 465/205 combo i had before.

    The rear driveline is a little steep, about 19 degrees running angle. I have the diff tipped up for a CV shaft but am still running 1410's top and bottom. :doah: Surpisingly the vibes aren't all that bad under 45 mph...

    [​IMG]

    [​IMG]

    The NWF stuff is clockable however you want it, and if you find it's too much or not enough you can unbolt and reclock it.

    Rene
     
  8. MNorby

    MNorby 3/4 ton status Premium Member GMOTM Winner

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    here is mine. Crossmember hangs 2" below frame is all. This is a WMS setup with the 205 flush with bottom of 203 in stock location. 25" of belly clearance.

    DSC04097.JPG

    DSC04105.JPG

    DSC03861.JPG
     
  9. cegusman

    cegusman 3/4 ton status

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    I have really been thinking about the NWF stuff. The main thing I was really looking for was how low the np203 box hung down, If it hung down bad I was going to get NWK to build me a sm465 to np203 adaptor with a 90 degree or 180 degree rotation. I think I will just run the stock one for now, buy the NWF doubler. Clock the np205 flat and see how it works out.
    [​IMG]

    As for drive shafts, I allready have a H.A.D. 1ton 1410 cv shaft in the rear and a 42 degree CV shaft up front, so angles should not be a problem.
     
  10. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Well, that's the other thing with the NWF kit, if you want to experiment with clocking the 203 at 90,180 or 270 you can...it's a standard feature of their kit.

    Rene
     
  11. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

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    Im flat.I run an ORD setup with the 205 clocked up and my whole drivertrain raised about 2.75" :D

    [​IMG]
    [​IMG]
     
  12. cegusman

    cegusman 3/4 ton status

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    Looks good, but damn you people with raising the drivetrain.:doah: I want to keep my center of gravity as low as possible, so its really not an option.
     
  13. jays68yak

    jays68yak 1/2 ton status

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    If you dont want to raise it then dont, but you wont have a flat belly.
    I went up as far as I wanted to with the shafts I run. I would say Im around 2inches below the frame. Mostly crossmember. 203 is stock, 205 is flat. staz/jeds adapter.
    [​IMG]
     
  14. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

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    Raising it up that far I thought would be a noticable difference in the way it wheeled.It feels the same as before I raised it.Low COG is cool,but I dont think raising it a couple inches will kill you :D
     
  15. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    [​IMG]

    Here's mine, 205 clocked flat, 203 upside down. As for whether or not the drive train is raised or not I couldn't tell you. It was all custom mounted and its a Caddy motor with a 465 mounted off a midplate. Crossmembers are above the bottom of the frame rails. Drive shaft angles are really good. I used a 465/208 adapter which is pretty long. Pushes the doubler back a ways and helps that front angle.
     
  16. cegusman

    cegusman 3/4 ton status

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    Thanks thats just the pic I was looking for.
     
  17. cegusman

    cegusman 3/4 ton status

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    Does the 203 leak at all being upside down. Can I get some pics from the under side, and the floor where you had to cut?
     
  18. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    I have a leak between the cases not from the case. I'll see what I can do for pics. I've been terrible about that lately! I cut alot of floor out!
     
  19. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

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    So did I.I had a big hole from the bell housing to the rear output.My rear output was inside the cab :D
     
  20. cegusman

    cegusman 3/4 ton status

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    I would really apreciate some pics if you remember. I am still really thinking about setting it up this way. Just don't want to spend all the extra money, but might need to.
     

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