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Whats wrong with this set up ??

Discussion in 'The Garage' started by ntx78k5, Jun 16, 2005.

  1. ntx78k5

    ntx78k5 1/2 ton status

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    I have a 78 K5 Full time 4X4 I believe thats a 203TF case??
    350 4 barel quadrajet
    RV cam
    Th350
    203TF case I believe
    D44 Front
    Corp 10 bolt rear
    342 gears ( I know this is a problem)
    4" lift and 35 mud terrains
    All I use this for is mud, and my deer lease and occasionaly drive to work.

    This isnt a daily driver the Motor and trans were rebuilt seperately about 15K miles ago. I've always been into sports cars this is my first 4X4. Everytime I talk to a hard core 4X4 shop they keep telling me I need to swap out for 1 ton axles, 5:13 gears and a conversion kit for the 203. This truck was never 4X4'ed before I bought it and I am the 3rd owner. The owner before me had it for 2 years and never drove it. If I swap put the gears this thing should be fine ini the mud and light road duty right? All knowledge is appreciated..
     
  2. icer97

    icer97 1/2 ton status

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    5:13 seem awful low for just 35's. Id rather upgrade to a 205 then put any money in the 203. Depends on what you want to use it for. Have you broke anything yet? I was always taught dont fix it till it breaks!
     
  3. dhcomp

    dhcomp 3/4 ton status Premium Member

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    Yep, you'll be alright.

    Most people agree that 35's are the largest tire you can put on those axles without too much chance of breakage, but with a heavy right foot you can break a lot with just 33's.


    As long as you go easy on it, you'll be fine. Mud is pretty forgiving too.
     
  4. Executioner

    Executioner 1/2 ton status

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    FYI back in 78 the 10 bolt rear was very rare, most likley a 12 bolt.
    Also about that time 10 bolts started to show up in the front.
    Good ,bad, indifferent, for you application, I would work with what you got.

    What are you whating to do, whats you goal ?
    If your are going to Hardcore 4 wheeling with it, then build it up.
     
  5. ntx78k5

    ntx78k5 1/2 ton status

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    Nope nothing broke yet. If I upgrade the 205 doesnt that mean I have to change the front hubs? may sound dumb but I know more about motors than I do 4x4 chassis and running gear.
     
  6. ntx78k5

    ntx78k5 1/2 ton status

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    I am easy on it, I have a heavy foot on the street only yet. I like to crawl down the trails and it pulls so well in the mud I barely get over 5-10mph.
     
  7. icer97

    icer97 1/2 ton status

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    You wont have to change the front hubs, however if you dont have lockouts, id recomend them. You will have to change driveshafts, the 205 I believe is shorter.
     
  8. 4trolls

    4trolls 1/2 ton status

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    I wouldnt change anything for your application
     
  9. WARP1

    WARP1 Registered Member

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    I would want 4.10s, a Lock Rite, axle shafts, and a part time kit. This would be about $850 spent on the 1/2 ton axles. If you never want larger tires and you like your 1/2 ton rims, this would be find. But you might be better off to leave it as is. But, I can never leave anything stock.
     

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