HI John I done one of these awhile ago,Got info from Ford tec help line [4 pages] A pig of a job,bush siezed on shaft,difficult to align. Did not use any special tools,only hub puller. Took all day to do both sides[might just be me?] be quicker next one. Just found info,mostly faded now but reads>>LOOKING AT 5 TO 6 HOURS BUT UP TO 8 NOT UNCOMMON Sorry and good luck Tony PS If more info reqd contact me on 01255241777 bye