would any one happen to know?

in the richmond instructions they say to drive the car easy for 10 miles and and let cool for 30 mins and repeat a few times but I have heard that it takes a hundred miles what should I do ?

 

Yeah, let them heat cycle, drive around for 10 miles, cool down for 30 to however long, then repeat 4 or 5 times. Then be easy on them for 200-400 miles.

 

i'm looking at buying a used set of 4.30's that have been broken in right, when I get them installed do i need to do the same?? they are yukon gears dunno if that makes a dif.