One more question, gentlemen... We have to get the trailer to the dealer for some warranty work. It's about 60 miles one way, gradually downhill from 3000' elevation to less than 100'. They will ...
The 500 miles is to set the rear gears. When we had an 08 F150 2wd I was thinking of getting 4.10 gears. The mechanic told me that I would need to put 500 miles on them before hard acceleration or towing. Seems to fall in line with manufactures recommendations. What's it going to hurt anyway to put 500 miles on it before towing?