Fixed my suspension squeak in 5 minutes. Like many of you I’ve been experiencing an annoying suspension squeak for sometime. Seemed to be from the passenger side, possibly front. Occurred anytime the suspension moves and was loud.
Sprayed some Maxima SC1 (silicone spray) on the shock shafts/wiper seals and cycled the suspension a couple times. Then used WD40 PTFE Dry Lube on all the pivots (top/bottom shocks, all trailing arm pivots, and upper/lower A arms). I cycled the suspension a couple times after applying with my floor jack but you could easily just drive around the block. Wipe any excess after. Truck is silent like it should.
I suspect the culprit was the front right shock shaft/wiper seal. It’s common practice to use silicone spray and cycle suspension to clean out any contaminants in mountain bike suspension to clean/lubricate the seals. Doesn’t seem ideal to have the shock body on the bottom like the front shocks on these trucks. Seems like it would contribute to ingesting contaminants into the seal but that’s just my uneducated opinion.
Ps. Reading this thread I see some guys are spraying “grease” or regular WD40. That’s not what you want to use on the shock seals or the pivots. Anything that stays oily will attract dirt and lead to increased wear. Dry lube is what you want for the pivots and silicone wiped clean for the seals.