Differential gasket - needs sealant? (1 Viewer)

[Spanky Pete]

I am about to put the third member back together and I am not sure about the gasket. I have read the diff cover gasket, which is cork, doesn't need any sealant, just set it up dry.

The 3rd member to axle gasket from toyota is a different thinner paper material. Should I lay a bead of permatex on there?

 

[GLTHFJ60]

Don't need to, but it can't hurt. I've done both with the dry toy gasket and with just RTV. Neither leaked.

 

[BGarcia88FJ62]

I've never used anything more than the gaskets. Unless you mauled it getting it off and bent or put a groove in it or something gaskets are all you need IMO.

 

[KLF]

I always use a gasket, with a thin bead of RTV on both faces. Reason is for removal: when you need to take it back out, the gasket will split. But the layer of RTV will make peeling it off with a razor scraper much easier.

 

[cruiser88]

I never have used a gasket.......just permatex

 

[specialk396]

RTV

I use either RTV and gasket or RTV only, depending on if I have the paper/cork gasket. On a thick mounting flange like is on these diffs, RTV should be fine.

 

[nuclearlemon]

i've never used any sealants outside of hightack to keep the gasket in place when i stabbed the diff.

 

[wengejor]

I just swapped 4.11's into my truck last week...I didn't use sealant on both and the rear didn't leak, but the front did. I used a razor blade to remove the old gasket material, but the front didn't seal up. I had to drain it, loosen it up and put some goop on it. I didn't fill it back up yet...giving it a few days to cure before refilling it w/ 90w.

 

[lehiguy]

I hate to admit how many Toyota center sections I've pulled, I always removed the gasket and used RTV only, never had a leak. RTV is used by many axle manufactures these days, and no gasket.

 

[zebrabeefj40]

I've had better luck with RTV only than with any combination of gaskets and goop on diffs... YRMV!



Nick

 

[cruiser guy]

I have always used rtb, its pretty forgiving if you get a skinny bead in an area, and removing it isn't all that bad either

 

[rusty_tlc]

What are these "gaskets" of which you speak?

 

[lehiguy]

What are these "gaskets" of which you speak?

That's the one! That is an actual Dodge part, they don't use gaskets on their diffs, just the Ultra Grey specificly.

 

[ntsqd]

I used the "Right Stuff" when I put the FF in. I've used it on an NP241's cases as well. No leaks. Not looking forward to taking either apart, but I didn't put it together intending to take it apart anytime soon.