[30 Closed Cab PU]

My opinion- There has been lots of negative feedback on the modern silicone gasket. Some have had success with it, but reasons for the successes are not definitively known and verified. The copper and Best composite have few if any failures. Personally I would not want to risk using the modern gasket.


Please note Dave's experience in the above string referenced in post 29 - "If antifreeze is used during the setting of the gasket, and it seeps, it will never seal and may weep when put under heavy load. Just my experience."