I have decided to go with the t56(viper spec from d&d) for my car, when I get the money of course, and since the 3.73s aren't going to cut anymore I was wondering if it would be better to upgrade the center section or to even replace the whole diff itself. If I got just gears, I would get the bearing kit as well. What has anybody else done? Oh yeah, I would be getting 4.10s since this is a daliy driver right now.
I would beef up the rear end, and deff go with 410s there perfect for a 6 speed I dream to have that trans one day. Keep us posted.
Your rear is strong enough. Once you get over about 450 HP, you'll wanna upgrade the axles. the rest is fine. Nice tranny pick!