clarkerussell Posted August 12, 2006 Share Posted August 12, 2006 Does anyone know if the NP242 will bolt directly to the NV3550, or do I need to find a specific NP242? I think the NV3550 is a 23 spline output... I just don't know about the NP242.. Thanks. Clarke Link to comment Share on other sites More sharing options...
Oizarod115 Posted August 13, 2006 Share Posted August 13, 2006 depends on what year, i think the pre 91 cases were 21 spline after is 23 (don't quote me on that but I'm pretty sure) Link to comment Share on other sites More sharing options...
ROADLESS Posted August 14, 2006 Share Posted August 14, 2006 depends on what year, i think the pre 91 cases were 21 spline after is 23 (don't quote me on that but I'm pretty sure) IIRC Oizarod115 is correct about the pre-91's having 21 splines. Link to comment Share on other sites More sharing options...
clarkerussell Posted August 14, 2006 Author Share Posted August 14, 2006 OK, so if I get the NV3550 (23 Spline) and a post 1991 NP242, I should be good. Now, since I'm putting this in my 1988 4x2 Comanche, I will need to shorten the drive shaft. Is that the only other thing that I'll need to do right away? I'm planning on adding the front axle shortly, but I have to get my truck on the road ASAP... Thanks. Link to comment Share on other sites More sharing options...
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