Originally Posted by silverdollor
my 383 was put to gether by james at big 2 in gulfport missippi it has less than 300 miles on it at first at around 2500 rpm just shook a little then brok bell housing now with new trans at same rpm motor shakes like a paint mixer nothing is knocking yet i have just been threw & followed a lot of advise can you take a stab at what it might be ???????
Obvious thing is the balance. Is this externally balanced or internally, and does the damper and flex/fly match how it's balanced?
Are you using solid motor/trans mounts and/or urethane? Mounts good/new?