RTV ?
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Mountain Pass
Joined: Feb 2009
Posts: 215
Likes: 6
From: Delhi NY
RTV ?
So let's say you put a nice bead around the diff cover and you install bolts finger tight. You forget to torque them down after an hour. Its been 12 hrs since you put cover on finger tight. Do you now torque them down wait the remaining 12 hrs to cure and fill her up with gear oil? Or do you go back to the local parts store with tail between your legs and purchase more RTV and start over? The later would be cheaper especially with the price of gear oil. What would you do?
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
What RTV did you use? On a differential you want a firm set grey RTV. If you are not using Motorcraft, Whacker or Vibratite 999 then Permatex Grey Gear oil RTV is the next best ticket. Install to full torque and fill in 1 hour. https://www.permatex.com/products/ga.../?locale=en_us
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Mountain Pass
Joined: Feb 2009
Posts: 215
Likes: 6
From: Delhi NY
What RTV did you use? On a differential you want a firm set grey RTV. If you are not using Motorcraft, Whacker or Vibratite 999 then Permatex Grey Gear oil RTV is the next best ticket. Install to full torque and fill in 1 hour. https://www.permatex.com/products/ga.../?locale=en_us
Senior User
Joined: Jan 2021
Posts: 121
Likes: 35
RTV is used in manufacturing because it can be automated, eliminating a job a human could do.
There is NO reason to use RTV for maintenance when a LubeLocker gasket is so easy and works.
In your case, go on and tighten it down. It will probably be OK.
There is NO reason to use RTV for maintenance when a LubeLocker gasket is so easy and works.
In your case, go on and tighten it down. It will probably be OK.
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Mountain Pass
Joined: Feb 2009
Posts: 215
Likes: 6
From: Delhi NY
tried the gasket. Not a good outcome. This truck has been sitting for almost 2 yrs. There was a lot of pitting on the differential housing gasket surface.
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