This is predicated on the assumption that the upper ball joints are bad. I haven't had a chance to properly inspect them yet, but the boots are clearly leaking, the mechanic said that one of them definitely needs replacing and from my brief test drive last night, there's definitely some clunking up there. I'll have to take a closer look to confirm what exactly is going on, and with the way the front suspension is bouncing around, I wouldn't be surprised if there's more that's worn out.
It's $70 for the
OEM ball joint which isn't bad, but if I'm going to do the ball joints, I figure I might as well do the bushings while I'm in there. Sadly, Mitsubishi doesn't seem to sell OEM bushings for the front uppers on their own, just whole control arms. All the aftermarket stuff I've found is polyurethane, but I'd rather stick with rubber. It's $120 for an aftermarket control arm from
NAPA, which according to the guy at the store is manufactured by Dana Spicer in the USA. That seems like a decent deal and saves me the hassle of pressing in bushings.
The other thing I considered is
Total Chaos control arms, but that seems like overkill before I've even started wheeling the truck.