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I have a 1997 F150 XLT 4X4 W/ tow package. My axle code is "19" which is a 3.55 open. It looks like an 8.8", is this correct? If so, what is the spline count, 31? What I want to do is put in a limited slip differential or a powertraxs in plae of the open diff. Anyone know what would be the best for my truck? What I would like is a good differential for regular road driving but also for driving in the mud, snow and ice that we have here in central Michigan.
No need to do that, it's 31-spline. I can't say whether or not the Powertrax is good or not, but it sounds like a l/s is what you want instead of a locker or spool.
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