Campfire Time wrote:
Two things. Some manufacturers allow a slightly raised front fender height. I'm not sure if Dodge does but it should be in the manual. GM does not. I think Ford allows for half the distance of the raise before the WD is applied.
That is correct, 2001+ F150 and 2014+ GM half tons state t orestore only half the weight lost (or height increased) on the front axle.
"sags more than 1.5" from unloaded, you are probably overloaded."
I've read this in people's postings but have never seen it written in any owners manuals (not GMs anyway) or anywhere else. It's not a bad "rule" to keep it close to lever, mine have always been right in line with this, but unless the rear squat is dramatic like 3" I can't see this being an issue if everything else is setup properly and the trailer is level.
There is no specification on the rear axle weight/height when adjusting a WDH. Set the front and the rear is whatever it ends up being. My 1.5" comes from personal experience with two TVs and summary of what other RVers report on these forums. When the front is at net zero weight/height, the rear ends up being about 1.5" lower than unloaded height when the truck is at GVWR. This works out really well with body on frame pickups and SUVs because they tend to sit about 2" higher in the rear than front when unloaded. So when I see other vehicles towing and the rear is lower than the front, I think their WDH is not adjusted correctly (or they don't have one and need one) or they are overloaded.
Reports on here from half ton towing RVers show that rear axle weights are very close to the rear axle ratings. That is one reason why I would tend to restore 100% of front axle weight vs. the recent Ford/GM recommendations.