injector sleeves 7.3

[tipsyjack]

hey all,1st post and of course i'm looking for a little help.want to say how great it is having this site as a resource first off.ok now i'll get to it,my '01 7.3 has a bad injector sleeve/cup have'nt figured out which on yet,just noticed the fuel in the coolant yesterday,so i'm looking for a good deal on new parts.i also need to ask if anyone has used the "whitakertools.com" sleeve puller/installer?is it a good tool?can i get to the back four sleeves with it w/o head removal? any other tips or advice would be greatly appreciated.thank you,jack.