ever loosening wheel bearings....

malcolm;9520 wrote: process of ellimination would determine that the bearing rides on 2 components so either one or all are worn.

Then whatever is determined to be the root cause is replaced with a new bearing.

I agree Malcolm, that is why I asked how to determine if the spindle is worn.

Hello Stan,
did you replace the bearing cup in the hub for each bearing assemble.
IMO that is where it is getting loose. If the hard cup was not perfectly clean and did not seat in the hub correctly, then as you tighten it or drive it the bearing cup will walk into the hub more causing the bearing to be loose. IMHO
this is why I said that when you tighten it really really crank it tight while turning the wheel against the rotation of the nut until you can not tighten it any more.
Then back it off and set the preload
This is the only thing I can think of that is wrong.

I hope it helps Stan, give it a try or take it all apart, wash the hub clean and see if you can see any space behind the bearing cup where it is not seated against the hub

www.google.com/url?sa=t&rct=j&q=bearing%...Y_HH24B_oXUloaLri_fQ

www.google.com/url?sa=t&rct=j&q=bearing%...x8eBzdzkb3PXuQONKtqA

Hi Brad,

I think the cup you are referring to is what I call a "race". Yes, they were replaced. I suspect the spindle or hub is worn, as there was a "loose" issue before I swapped them out.

I checked the right side again last week, and it took another 1/2 turn of adjustment, and my suspicion is that it is now at the bottom of the threads, as I really could not turn it any farther with a reasonable amount of force.

malcolm;9607 wrote: Stan,

if your convinced you have one side good one side bad then measure both and see if theres significant diff. then take steps.

Brad does have a valid point but given the amount of time its perhaps too late to get them correct.

well, not necessarily convinced, but it is the direction I lean in, and it is what I plan to do next, I just haven't gotten to it yet