stuck bolt

hi,

the PowerPlantFrame PPF is secured, (on the rear) , with 2 17mm bolts. the
forward one is stuck. i started with a 3/8 ratchet, went to an air ratchet,
1/2 air gun, 3/8 ratchet w/ a 8' black pipe extention, (this worked quite
well at snapping the socket :). if i had a 3/8 to 1/2 adapter i would use
that with the 3/8 ratchet and pipe but i do not have one...suggestions?

tia,
peter

-- 
Medio tutissmus ibis
You will go most safely by the middle course