Ultra Copper for Diff cover? ASAP

[Hossbaby50]

I ran out of black RTV and all I have around is Ultra Copper. Is this ok to use as diff cover gaskets? Will gear oil eat it?

I am running Ultra Copper on the intake manifold so I now it will last with motor oil, but I know ATF eats it. Will gear oil be ok with Ultra Copper? I run Redline Heavy Shockproof gear oil if it matters any.

Harley

 

[az-k5]

I have that ultra copper paint stuff on my hubs to seal up the the shafts and it hasn't had any problems yet.

 

[MTBLAZER89]

Thats all I use for the diffs never leaked on me yet. /forums/images/graemlins/waytogo.gif

 

[pauly383]

Thats whats only on the front cover you made me, and whats holding on the gasket ( needed one there ? ) on the rear one you made me. I like the ultra copper as it useful in more areas /forums/images/graemlins/k5.gif

 

[K5 NUTT]

Ultra gray is the way...

We use it to install diffs on semi's...spicer even slaps there sticker on the carded product when we get a reseal kit from them.....i use it on xfer cases...trannies...and in place of diff cover gaskets...

DW

 

[Hossbaby50]

Does grey it work with ATF? I need to pull my 208 out an reseal it again because the ATF ate the Ultra Copper. I will keep that in mind now that I know that Grey is the Way.

Its to late for the rear diff as it is sealed up now and hopefully won't need opened again for awhile.

Harley

 

[pauly383]

[ QUOTE ]
Its to late for the rear diff as it is sealed up now and hopefully won't need opened again for awhile.

[/ QUOTE ]

I don't know exactly how long it lasts , but I know this much : It was on my 12 bolt from November through end of February and didn't fail, actually had to scrape it and the gasket off as they were stuck to the housing ( cover came off clean ) . It was also on from end of Feb until I swapped covers and worked on my diff and it held that long too. /forums/images/graemlins/k5.gif

 

[Hossbaby50]

I know that RTV itself will last a long time as long as the fluid it is sealing doesn't eat it. I am just hoping that the diff ring I put on will keep my cover from peeling back so I don't have to pop the cover off to fix the leaks I was getting. I also hate to drop the cover because everytime I do I am at risk of ruining $30 in gear oil (which I did when I popped it this time /forums/images/graemlins/angryfire.gif)

Harley