No, you don't want to do that if you are going to be driving it on road. My suggestion is that you get the break-in procedure in writing from the gear manufacturer or the shop doing the re-gear, then follow it exactly. That way if there is any issue, you can go back to them.
That still doesn’t address breaking in the front, which don’t spin unless in 4WD.
excellent point! I’ll have to reach out to Spicer directly and see what they have to say about it. I’m guessing it’s more of the same just with four-wheel-drive enabled but doesn’t hurt to check.
Unless you have 4hi auto.
Exactly. When my 5.13’s went in, they called for a 1000 mile break in. First 100 miles under 45mph, the remaining 900 miles under 65mph. I ran the entire 1000 miles in 4high auto to rotate the pinion, but not the axles unless there was slip. Always varying speeds and never using cruise control.
Check the thread title.
i’ve always thought that was odd too. Off the lot we don’t think about it
