Sometimes the screeching noise is simply the rubber seals. The newer the seal, the louder the sound. Not always a bad thing.
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"Next to prayer, fishing is the most personal relationship of man" Herbert Hoover
"American by Birth, Southern by the Grace of God"Lewis Grizzard
FROG AR-0019-242
2016 GMC Denali 3500Dually--2017 CC 36CKTS
I have a 2005 Cardinal with 3 slides. I bought it new. I can tell a difference between a rubber squeak and metal drag. I use 303 on the rubber seals and that seems to work well. There are adjustments on the slide frame for metal drag and I have adjusted that on two of my slides.
Lippert says to only use dry lube on slides. I got tired of some drag and squeaks and finally sprayed some white grease on the slide gear box inside the frame. I could really tell a difference. The gear is inside the sealed frame area so I don't worry about much dirt sticking. Another Cardinal owner said he sprayed white grease on his many years ago and had no problems. So I took a chance. I know some grump may chastise me for it, but So far I am happy. Just fyi.
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