by geeves » Fri Sep 18, 2015 2:58 pm
Sounds like the 4.8 and 5.1 are not isuzu 12/10 bolt diffs. Could be a hassel fitting although if you had the dana diff housing in your truck fitting the heads from a jeep or any one of several other trucks would be easy
Sanding your knuckles before starting work can help. That way you cant skin them