Use dry lube with PTFE [ Teflon]. Silicone will disappear quickly. Dry lube evaporates and leaves PTFE powder and won't attract dirt. Pulling out1/2 way then coming out crooked sounds like something's caught in the track sticking in? Maybe
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2016 Flagstaff 27VRL Emerald
14K Equalizer
2020 Silverado 2500HD CC 4X4 6.6L gas 3.73
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