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Not sure what polygraphite is (implies graphite lubricated?), but I have polyurethane everywhere on my 69 C-10 -- sway bars, track bar, rear control arms, cab mounts, and also on my Maxima's sway bars. Some come with a lubricant, but I've also used distributor cam grease and have never heard a squeak from any of them. By the way, the only bushings on my front suspension are for the sway bar. My control arm shafts don't have bushings, but instead are threaded on each end and rotate inside large cap nuts. There are grease seals between the nuts and the shaft. Is the C-20 different?
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Mike
1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
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