I need to know how wide of a rear end I should use on my T-bucket project. I'm sure I can probably use anything as wide as I want, but realistically, what's the norm? I only ask because I'm going to get my c4 tranny tonight and the guy also has an 8" out of a '70 mustang he'll sell me complete for $50. I'm afraid it's gonna be around 59". My dad said nothing over 56". what do you guys think?