Originally Posted By: Trav
Originally Posted By: blupupher
Trav, the Moog Upper control arms I got for my F150 from Amazon did not have the boot installed, I put them on myself. No problems with them so far (just over 1000 miles on them). My lower ball joints has some smaller boots installed from the factory. They looked weird, but work just fine.
I also used some Green Grease on all the joints, seems to work fine so far, but as I said, not many miles on them.
I need to do my tie rods soon and will be using the Moog with Green Grease also.
It's make and model dependent, some are the old style loose fitting and no problems, IMO they are the best for greasable joints although they require a bit more frequent greasing they are easy to flush them out without fear of exploding the boot.
The ones you have watch out for are the ones that are pressed on, they have a small lip on the bottom about 1/4", look for cuts and pinch marks right above this area, even its not through the boot is severely weakened and will be short lived.
There is nothing wrong with Moog problem solver joints, the steel quality is fine but its the boots on some models that let them down. They wont fix the problem even though they have known about the issue for at least 5 years and stated back then they are working on a new boot design but it never materialized.
Installed Moog BJ's on a mid 90's XJ earlier this year. They had that small grease boot also. Nice because its hard to damage during installation, but it also didn't seat against the spindle in this application. That resulted in it EASILY becoming unseated from the ball joint if you added extra grease. At least with the old style the boot stayed in place and just leaked out grease.