Quote:
Originally Posted by jtobbe
What is happening is if they are installed before you put the jacks down the weight on the axles are more than after the jacks are down and the truck is unhooked. If you look at how far back the jacks are, that are now taking the pin weight, it has a lot of weight cantilevered over the jacks. That makes the axles lighter and changes the arch of the springs. The same is true backwards when hooking. The arch of the springs is possibly making the tires move closer to or further away from each other.
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Yup. I use RotoChoks (no longer manufactured but similar to other current between-the-tires products). If I install them before unhitching, I have to remember to either retighten (or occasionally loosen) them after leveling. Likewise, before hitching up, I have to do the reverse to avoid having a tough time removing the RotoChoks. Also, as tires cool, the chocks can loosen, requiring an adjustment.