thinking about 4.10's and t-lok
 

hey guys im thinking about buying these 4.10 gears http://www.americanmuscle.com/v6gears.html | and buying this t-lok http://www.americanmuscle.com/ford-28spline-75-lsd.html | and im going to need this speed calibrator correct? http://www.americanmuscle.com/speed-...tor-94-04.html

how much do you guys think at a shop it would cost to have these put in and is there anything else i would need to buy?

and also seen people saying at 65 mph there at 2500 rpm on the highway what would it be at like 80

theres a guy in the classified section i believe selling all of this for cheaper, if your interested. probably like 3-500 for install. varies tho

ok thank you:)