I know that for proper break-in, we're not supposed to tow for the first 500 miles. But, the owners manual goes on to say that you shouldn't tow over 50 mph for the first 500 miles of towing.

That's a tad slow on most highways.

What is the common thought on this?

Thanks,
David

 

My truck is just now over 500 miles and I'm trying to tow under 50 for the first 500 miles with a load. Since I plan on keeping it for a long time, I thought I would try to follow the instructions for once.

The reason for the low speed, as I understand it, is to keep the rear end ring and pinon gears from getting too hot until the gear face surfaces are properly meshed, finished or work hardened or whatever. It is hard to keep under 50 even on most major city streets. Several friends say to get in the right-hand lane on the interstate and don't look up.