For sale is a Dana / Spicer trac lock unit from a parted out early pre 1998 Ford 10.25" Sterling F250 / F350 truck rear end. Dated 1988 and has case number 42357. The ring gear failed and nicked the case in a few spots, the spider and side gears look undamaged, just light cosmetic damage to the case. Yours for $125 to rebuild or use for parts. NO electronic payments. Prefer local pick up because this unit is heavy.