I scanned and posted a 1985 Spicer Hub Lok service manual this evening. Don't know how much of it is applicable to our trucks, since I'm no 4WD expert, but FWIW here it is:
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-O-----O- Keith
'67 F-100 2WD SWB ~ '69 F-100 4WD SWB w/7" chop ~ 1975 F-250 Ranger XLT Supercab Camper Special My '67 restoration video -> Posting and you!<-a MUST watch for all!!