"Galloping," or speed related "hopping".

I have seen the drum pilot be to small plenty on older trucks. Also the barrel but face as well as the rim itself will wear and cause issues.

Last one I looked at hopped at 50 and 70. Right front drives with aluminum inner and outter wheels. The inner had the steel barrel nuts without the centering sleeves.

I have done the jackstands and run it up a bit. Ain't as bad as it sounds. Sometimes when all else fails you have to get serious to find the problem.

 

I've been waiting for a respected member to condone 30 mph on jack stands. I don't like to do it but sometimes you got to do what you got to do.

 

I've never done it (never needed to) but if I did have to, I think the biggest thing would be to not be an idiot about it. If its hopping a lot, slow down. No sudden acceleration or hard braking etc.

 

I've run several different trucks on jack stands over the years. Always chocked both steers, drives sitting on 4 stands, a competent operator at the wheel at all times and be gentle with it
Also make sure there's nothing in front of it you don't want run over just in case

We all do something dangerous all the time but we take precautions to minimize the risk after all driving is dangerous.

 

I've done it with smaller vehicles. But I also had it anchored via an over head crane... It wasn't going no where. With a rig I would be VERY hesitant at doing it. Ive done it with flat boards over top for level and a jack sitting g next to the tyre. You can see enough with that turning it by hand. Covers both angles and is way safer lol

 

Jeez? I only said 30, not 60. Bunch of babies. Do you want your truck fixed or not? Keep throwing parts at.

 

I don't think anyone is being a baby... There's just your way which works for you which is fine.... I just don't need my kid and family getting that phone call that a truck jumped off some jack stands.... Hey accidents can happen anytime but I'd rather stray to the side of caution. Thats just me

 

No braking at all. Neutral and coast to a stop.