Hey, I am going to purchase a 2004 Chevy 2500 hd lt 4x4 Allison truck next week. I know it has a edge juice, and a cold air intake. I want to get suggestions on what I should to to it when I get it. Should i flust trans, change trans filter, flush diff? What would you recommend I do? Oh yea it does have 190,000 miles on it. Car fax certified with reports of inst cluster repair, fuel pump replacement, and regular olf at the dealership.