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2500 and 3500 transfer cases

Discussion in 'Chevy C/K Truck Forum' started by notpilbrisk, Sep 19, 2010.

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  1. notpilbrisk

    notpilbrisk New Member

    hey guys just curious what transfer cases the heavy duty setup of our trucks ran for models with 4wd 8500+ gvwr thanks alot guys Gerry
  2. 2COR517

    2COR517 New Member 1000 Posts 100 Posts

    What years? NP205 were used up through 88/91 or so. The NP241/243 was used on 88-98 GMT400 trucks with 8600 GVWR. The Borg Warner (3305 I think) was used on 3500 trucks in GMT400. But the 241/231 is a plenty strong unit for most any application.

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