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whats a doubler?

Discussion in 'The Garage' started by K5Redneck33, Apr 25, 2003.

  1. K5Redneck33

    K5Redneck33 Registered Member

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    i know this prolly sounds stupid to all you thats been in offroad for a while, but i have no idea what a doubler is? i see people talk about it and stuff but i am just wanderin like the basic of what it is? /forums/images/graemlins/k5.gif
     
  2. fortcollinsram

    fortcollinsram 1/2 ton status

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    A doubler is simply a combonation of a 203 and 205 transfer case. You use the gearbox of the 203 in front of the regualer 32-spline input 205 with a special adapter and you have the option of 1:1, 1.96:1, 2:1, and 3.96:1 ratio reductions. The normal 205 has a 1.96:1 reduction in low and the 203 has like a 2:1 reduction in low...add them together and you get 3.96:1...plus, the entire unit is relatively compact /forums/images/graemlins/thumb.gif Check out ORD for more information...
    Chris
     
  3. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    To explain what Chris just said in a different way:

    "It a thing that makes your money go FAST, and your truck go SLOW..."


    /forums/images/graemlins/eek.gif /forums/images/graemlins/rotfl.gif /forums/images/graemlins/eek.gif /forums/images/graemlins/rotfl.gif /forums/images/graemlins/eek.gif
     
  4. bigjbear

    bigjbear 1 ton status Staff Member Moderator

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    x2, not +2 (hence the name "doubler"). It's not much diff between 3.96 and 3.92 but if you use a case like a 241 (4.72 vs 5.44) or 3:1 gears in the 203 (4.94 vs 5.88) it will start to matter. If you start talking Klune-V or 4:1 gearsets that are out for some of the Toy & Jeep cases the jumps are bigger.
     
  5. rick88blaze

    rick88blaze 1/2 ton status

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    can you make a doubler out of any t-cases, like a 208 and a 205 or does it have to be a 203 &205?
     
  6. scrappy88

    scrappy88 1/2 ton status

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    The advantage of using the 203 and 205 is that it's all gear driven so there are no chains to wear out. The part they use off the 203 is all gear driven, and the 205 is also. Supposed to be really tough, but kinda expensive.
     

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