Quote:
Originally Posted by Kcorey
Hello all. I have a 1970 k20 cheyenne i am wanting to swap a 6.0 LS and 4L80E transmission into. Couple questions , what transfercase have all used to retain the 4wd i know i am going to have to have driveshafts made? Also i am planning on using a pacific fab engine crossmember, what transmission xmember have others used? My truck has a aux tank from the factory, what have you guys done to supply the engine with fuel while using the factory tanks? Thanks
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as for the transfercase, the 2500 non HD that the 6.0 and 4l80e come out of use either a NP261 manual shifted or NP263 electronically shifted transfercase. it would be easiest to go with either of those, the 261 being the easiest as to not have to run any wiring for the push button transfercase selection.