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Np 241 Hd?

Discussion in 'The Garage' started by Tra 23, Jan 25, 2006.

  1. Tra 23

    Tra 23 Registered Member

    Jul 6, 2005
    Likes Received:
    Evansville, IN
    Does anyone have info on the NP 241 HD (maybe 241 D HD?) A friend has a 2001 Dodge 2500 4x4 with this t-case in it. My 94 GMC is about to need a rebuild and I would like to upgrade if possible. Thanks
  2. muddysub

    muddysub 1 ton suburban status Staff Member Moderator GMOTM Winner

    Jun 23, 2001
    Likes Received:
    my garage, Henderson, NV
    damn i used to know the difference... see what not driving your truck for 3 years does to you? ive forgotten so much stuff...
  3. 1985_K5_Silverado

    1985_K5_Silverado 1/2 ton status

    Dec 21, 2005
    Likes Received:
    Corn Country
    This is all I have on the 241 (part of a MSWord file), and I don't remember exactly where I got this:

    Type: Part-time, aluminum, chain-driven case
    Low range: 2.72:1
    Applications: ’88-2000 GM pickups, ’89-’91 Blazers, Suburbans, and Jimmys, ’88-’93 Ramchargers and pickups, and ’94-present Dodge ¾- and 1-ton trucks.

    In 1988 New Process proved that you could build a chain-driven case to handle serious torque. The NP241 is strong enough for your big-block–powered rig, and with a 2.72 low range (Mepco has a 4:1 kit) you can crawl all over your NP205 buddies. A heavy-duty version of this transfer case is used in the Ram 2500 with the snowplow preparation package, all Cummins diesel-powered Rams, and Ram 3500 dualies. This NP241 HD has provisions for a PTO. Be careful when shopping for this case as GM has an IFS version with the front output on the driver side and a solid axle version with the front output on the passenger side. Dodge also played this game when it switched to the new body style in 1994 and moved the differential to the wrong side. One final word of caution, the NP241 could use either a mechanical or electronic drive for the speedometer, so make sure you get one that will work with your speedometer or vehicle speed sensor (VSS).

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