Ok I got 4.10s, I was just wondering what the proper break in procedure is on new gears. Also my car has 178,000 miles, since the rear end is going to be apart should I have the shop rebuild it? If its smart I will do it, but if it will be ok without it I would like to know.

Thanks,
Tom

 

That posi unit might be a little on the worn side. I'd have the shop inspect everything and make sure its still working and ask their opinion on the condition. Might be time to change some stuff out.

 

Alright but once they are in the car what will I have to do to break them in.

Thanks,
Tom

 

Ive heard of break in periods for gears but every car Ive had I never broke them in and been fine.