Its time to upgrade the rear in my 91. So i was wondering what the best trac lok and gear combo would be on a blown 5.0. i will also be doing the heads and cam this summer so i need it to handle that as well. im thinking 373s and an eaton trac lok, is this good enough? Another question i had was, is there any place that just sells the rear fully built already? Also does anyone know of a reasonably priced place to get this done in the long island, ny area?