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Old 06-11-2014, 03:45 AM   #2
Enginebuilder
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Join Date: Jun 2011
Location: Palmer AK
Posts: 68
NP241 Replace?/Rebuild?/Upgrades?

So, my 1995 GMC K2500 needs its x-fer case rebuilt. 202,000 miles on it, and it likes to pop out of 2hi when I let off the accelerator, and does NOT like going into 4hi, and forget about 4lo.

First, I was wondering if a lower-mileage NP241 from a more recent year truck or SUV would work? Mine is behind a 4L60E, so it has the 27 spline input shaft, right?

If swapping in a lower mileage unit isn't really an option, where would you recommend getting a complete rebuild kit?

Are there any upgrades that can/should be done to the NP241 when rebuilding them?
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1995 K2500 w/5.7 & A/T

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