flint54 Posted October 22, 2012 Share Posted October 22, 2012 My boneyard NP242 was almost too good to be true. $75 and it felt good externally. Ordered and received all bushings, bearings, seals, chain, and input gear (needed 23 spline). I've got it now fully disassembled, marveling at how good shape each part was as it came out. Right up until the last one. The differential case was disassembled, carefully cleaning each of the 8 internal gears and 12 shims and the case halves. As I looked closely, the dismay suddenly came to life. There is a bearing land on the mainshaft gear (item #22 in the image) where it rotates within the top case half and it was really galled. The mating bore of the top case half was likewise galled. They aren't a nice fit any more. I've smoothed the two surfaces as best I can, but the two parts are sloppy when nested together, about 0.020" lateral freeplay. So my puzzle is where to go from here. I've got several hundred $$ into this T-case so far, and I'm not eager to just abandon it now. I could: A) put it back together as it is and hope for the best B) abandon this T-case and find another, hoping it's healthier C) buy a new differential ($900) and press on (not bloody likely!) D) hunt for someone willing to sell a used, healthy, differential. Who wishes to share their opinions? Link to comment Share on other sites More sharing options...
flint54 Posted October 22, 2012 Author Share Posted October 22, 2012 Thanks to fellow club member Mike, my choice oif option D is made. What a great group of folks this place is! Link to comment Share on other sites More sharing options...
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