new ring & pinions when installed warm up very quickly. continued driving will drive the temp well above 300 degrees( i have seen some rear axles actually glow, and melt the rear brake like right off), breaking down the gear lube. i usually recommend a week of 10-20 mile trips, allowing the lube to completely cool down between trips. (like driving back & forth to work.) Towing, I like to see 1000 miles. Keep in mind, at the end of your 15 or so mile trip, its hot, so don't go doing burnouts or laying whole-shots. each trip you make the temps will not rise as high. very minimum 2 heat cycles before drag racing.
this process is not mandatory, but what it does is allows the gears to lap together better, the results are a longer lasting and quieter ring & pinion.
new ring & pinions when installed warm up very quickly. continued driving will drive the temp well above 300 degrees( i have seen some rear axles actually glow, and melt the rear brake line right off), breaking down the gear lube. i usually recommend a week of 10-20 mile trips, allowing the lube to completely cool down between trips. (like driving back & forth to work.) Towing, I like to see 1000 miles. Keep in mind, at the end of your 15 or so mile trip, its hot, so don't go doing burnouts or laying whole-shots. each trip you make the temps will not rise as high. very minimum 2 heat cycles before drag racing.
this process is not mandatory, but what it does is allows the gears to lap together better, the results are a longer lasting and quieter ring & pinion.