roberts right...theres nothing odd ball about the cap / nut
size...i have a old 3/4inch drive set and i just use one of the 1" plus
sockets in the kit...a socket and ratchet are the BEST way to
get the caps off (oil/trans-bypass & bot fuel filters)
once you get that OLD drain plug out upgrade it -->
FDDTS - HFCM Water Separator Drain Plug Upgrade
you could be suffering from WAX build up...there is a TSB
that calls for replacement of the HFCM (horizontal fuel conditioning
module) the HFCM fwiw is the fuel filter/water separator thats
mounted on the frame rail.
when you change the fuel filters you should be changing
both (frame rail & engine mounted).
i should add that a FUNNEL in to a jar works well....something
that allows you to get UNDER the HFCM but OVER the frame rail...
i stole a vase from my wife (hey i gave 'er the flowers and the vase
anyway...so doent it make it mine too the cheap glass vase (more like
a large jar) is flared at the top and indented at just past the
top so it fits nicely between the HFCM/Drain and the frame...it is really
very benefical (thanks honey) for catching most of the draining
fuel and reducing the MESS from dribbling down the front
drive shaft or frame rail.
a funnel...w/ some poly tube on it, draining into a catch pan would probably
work just as well...but dont tell my wife
heres a photo of how bad the wax build up can be....when you
dont perform the periodic/proper maintenance...if theres enough
crud in the hfcm it can prevent the light from EVER turning off...no
matter how much or how often you drain it.