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Q: NP205 or 241 for NV4500

Discussion in 'The Garage' started by rcamacho, Mar 16, 2005.

  1. rcamacho

    rcamacho 1/2 ton status

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    I'm running an NP208 behind an NV4500 currently. Standard 6 bolt GM adapter between the two. I have no idea what the input spline count is currently on the 208. I have to R&R the drivetrain due to an oil leak and am considering swapping the xfer case while I'm at it. What should I look for in the 241/208 regarding input splines for a straight bolt on affair? I can pick up a 205 for about $125 locally. I have not verified pricing on a 241 yet.
     
  2. rcamacho

    rcamacho 1/2 ton status

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    Checked with ORD. I can use a 32 spline 241 or a 205 from '85 onwards.
     
  3. mosesburb

    mosesburb For Rent Premium Member GMOTM Winner

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    The 241 will be an easier swap as it is an easy bolt-up deal. The '85 up NP205 will bolt up, but there will be interference with the inner shift rail to the mounting flange on the NNV4500 and you will have to use the short NP205 input ('84 and down style). Advance Adapters sells a spacer ring to alleviate this problem without machining the trans mounting flange and retaining the long-stickout input of the '85 up NP205. I think it runs about $125.00 for the ring, but I easily could be wrong. With this spacer ring, it is a bolt-up deal.
     

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