Time for more new bushings.
TL;DR - Replacing my LCA bushings didn't resolve my squeaks. Time to start thinking about UCAs and rear leaf spring bushings.
After replacing the LCA bushings, I thought a bunch of the squeaking that I have as the truck bounces over rough terrain might be fixed. It wasn't. There are two more sets of bushings that I'm sure could use a bit of attention - grease, at least, if not replacement - those in the SPC upper control arms (UCAs), and the Alcan rear leaf springs. Both are polyurethane - so prone to squeaks - and I'll be adding grease zerks to them when I replace them. I'm in no real rush though, since the squeaking doesn't bother me all that much, especially after sound deadening the cab.
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