truck should almost be ready should. is it safe to race after the eaton posi unit and 4:10 install or should i wait and put some miles on the unit and break it in first.

 

You are referring to the rear end? You are going to get different answers.

 

sorry edited the question, but yea the rear end

 

I was told to keep it under 50mph for the first 50 miles. Drive 15 minutes with cool down between for 500 miles. Easy for me, I work 15 minutes from home on city streets.
Others will tell you drive it like you want but the swap cost me near $1000 (4x4) so I went with the mechanics reccomendation.

What gear ratio did you go with, and a posi?

 

going with the eaton posi and superior 4:10's gears

 

What did that setup end up running you cost wise?

 

yea...you need to go thru some heat cycles to break in the gear....run it for 10-15 miles and let it cool off as many times as you can since i know you want to get on it very soon....