I didn't use grease to lube the rubber, I used it to prevent rust underneath the pad. They have a lip and water and crap sits inside causing rust. Grease is an excellent rust proofer, I don't care if it eats the pad their cheap I'll replace them every few years.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200