Whats Stronger The Allison or The 5R110?

Torqshift has no spin on filter on the passenger side of the case....So I would not trust any of that info.

i would definately take the 5r over an allison anyday. i think they are the best tranny in stock form just ask any of the 6.4 guys runnin between 500 and 600 horse on a daily basis and close to and over 700 at the track but after a few 700 passes they get pretty week from what ive heard. i dont know much about the 48r so i cant comment but if it were me i would keep the built torqshift.