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And it's NOT a "posi" that's a GM term. The correct Ford term is "Trac-Lok." Oppy is right, it's not a job to take on without some experiences help, a good shop manual and a pile of specialized tools.
Powertrax makes some drop-in lockers which do not require removal of the carrier. Might be worth a look.
Ebay- look for 8.8 rebuild video from "badshoe" that'll show you how to assemble/disassemble. It's really not that hard, you don't really need much for specialized tools.
Originally posted by MustangGT221 ...you don't really need much for specialized tools.
Most people don't have:
Dial indicator with magnetic base
Pinion depth gage
Arbor press
Slide hammer
Axle bearing pusher
Axle seal pusher
Dial type inch pound torque wrench