Anyone ever made one? My shaved diffs are a PITA to seal with RTV. Anyone ever made a custom diff cover gasket? Seems like a sheet of thin rubber cut and punched with holes would work nice?
Re-useable, and just torque it down tight and it shouldn't leak?

Good idea, or stupid idea?
Where could I get a thin sheet of rubber like that?

Thanks,
Phil

A friend of mine got some high temp rubber gasket material from work that we use for stuff like that all the time.... Not sure who makes it, or if it is available to the public though.


Has a reddish color to it, comes in rolls.....

Good hardware stores carry that red/prange stuff.

I cut a gasket out of a tractor tire inner tube once, it held up fine for me.

Ever tried t on a diff? Does it work, or does it leak?

Phil

Originally posted by JohnC
Good hardware stores carry that red/prange stuff.

Whats the proper name for this stuff? I'll call around here.

Thanks,
Phil

you could just use some cork gasket stock too.. any auto parts store should have some.

Originally posted by 1TONTJ
Ever tried t on a diff? Does it work, or does it leak?

Phil


There should be a late 70's Ford Camper Special with that rubber gasket on both Dana 60 diff covers still running around the south east somewhere :p

Originally posted by sceep
you could just use some cork gasket stock too.. any auto parts store should have some.

Autoparts stores don't carry them for shaved diffs ;)

Phil

Originally posted by DRM



There should be a late 70's Ford Camper Special with that rubber gasket on both Dana 60 diff covers still running around the south east somewhere :p

Cool - I guess I am doing this then. Did you only use the gasket, or did you use a thin layer of RTV as well?

Phil

Originally posted by 1TONTJ


Cool - I guess I am doing this then. Did you only use the gasket, or did you use a thin layer of RTV as well?

Phil


Just the gasket... But remember - this was a material specifically made for gasket type applications, I have no clue how an ordinary piece of rubber will seal up.

I am waiting for a call back from: www.ontariogasket.com they should be able to set me up with the proper materials (instead of just a rubber sheet).

Thanks,
Phil

Originally posted by 1TONTJ


Autoparts stores don't carry them for shaved diffs ;)

Phil

hey dufus he was talkin about the rolls of cork gasket material every parts store in america sells. :rolleyes:

Dallas

Thanks - I read it wrong.

Dufus

Originally posted by 1TONTJ
I am waiting for a call back from: www.ontariogasket.com they should be able to set me up with the proper materials (instead of just a rubber sheet).

Thanks,
Phil

Be sure and let us know if that pans out - sounds like you are on the right track :)

Use clear silicon..works great.

This is what west coast diffs uses;)

Clear? Weird.

I use "Permatex Ultra Blue" and it doesn't work too well (still drips)
Anyone know the difference between the blue and the black (they say the same applications on the package) other than the colour?

Thanks,
Phil

Yeah, the clear stuff like you would use to fix a leaky sunroof or something...It turns to rubber (Or a rubbery substance to be correct) when it dries.

Dont use blue, it sucks. I use black or grey. Works great. Not leaks and SUCKS to take the diff cover back off, so i know its sealed GOOD.

Clear works pretty good too.

The nice thing about a good rubber gasket is you pull it off, wipe it down, and re-install....


No messy scraping, cleaning, spreading, etc....

Originally posted by 1TONTJ
Clear? Weird.

I use "Permatex Ultra Blue" and it doesn't work too well (still drips)
Anyone know the difference between the blue and the black (they say the same applications on the package) other than the colour?

Thanks,
Phil

I will never use the blue stuff again....I hate that stuff!!
The Ultra black is what you want to use when you have to use RTV.....It is high temp gasket maker that is sensor safe!! Way better than the blue shit!

I actually use the ultra black on my diffs!

www.mcmaster.com

do a search for "gasket rubber"

i think you'll want Polyurethane, Santoprene, or Viton.

may want to check out (search for) PTFE gasket tape and/or PTFE Joint Sealant too.

matt

rubber breaks down from contact with petroleum based products

Use Viton....

I bought a aluminum valve cover off of ebay and there was a small chip in the casting so to make up for it the guy sent me these rubber D44 differential gaskets for free :) Here is his website http://www.4x4dude.com/ and they are called super gaskets. They are 1/8" thick and fit perfect. Not sure if he has gaskets for other diffs.

CJ

get some gasket paper, and cut it to fit.

Buna-N-60 would be a more cost effective choice than Viton - Viton is $250.00 per Sq. Yd. of 1/8" Buna-N-60 is more like $25.00 per Sq. Yd in 1/8". Garlok would also be another choice. Any industrial supply store ( AGS, CE Franklin, etc. ) would be able to supply this for you.

To hell with all the expensive viton, special teflonmetabadassstuff. Get a roll of cork from the autoparts store and cut your own. Rubber will break down over time with contact to petroleum products. Cork gasket with black rtv will seal it tight. Always stay away from the "I fawked with it" red or blue rtv.

Kwrangln.

I use straight Ultra Black RTV on my diffs.It holds up fine.Now that I reinforced the cover so I don't peel it anymore.Maybee you need to add some to your cover.Sounds like your tweaking it a little and leaking.Blazin:rasta:

Get a roll of cork and cut your own. I always cary a small roll w/ me and have used it enough times to justify carying it. I cut gaskets all the time for our logging equipt. (including a diff. gasket or two) and they hold just fine.

permetex right stuff is like ultra black only better.

Ron

I got a AMC20 diff... damn thing leaks no matter what gasket "goop" I use, how much I use, or how well I clean it. As soon as I fill... it leaks past the gasket materiel and slowly drips.

You find the place to get the speical poly type gasket rolls.. to make my own. please let me know. I need something better than gasket "goop" of any kind.

The www.ontariogasket.com place I mentioned has "sheet silicone" and that sounds promising. They also have a bunch of other junk too, but they are industrial not automotive and couldn't tell me which was best for diff covers...

Any of you guys know which gasket material would be best?

BTW - I bought a caulking tube of ultra black. I will try it this weekend first. Maybe it was just because of the "I fucked with it" Blue RTV ;)

Thanks,
Phil

Just get a cork sheet, cut it to fit, then put some "Indian Head" on it.

I had a 20 that leaked like a seive no matter what I did, put the IH on it, and it never leaked again.

Originally posted by The Rockslut
Dont use blue, it sucks. I use black or grey. Works great. Not leaks and SUCKS to take the diff cover back off, so i know its sealed GOOD.

Clear works pretty good too.

I agree. If you're going to use "RTV", don't use the blue. I've
used "Ultra Black" before and it seals up great. No leaks.

Originally posted by IndyCJ
Just get a cork sheet, cut it to fit, then put some "Indian Head" on it.

I had a 20 that leaked like a seive no matter what I did, put the IH on it, and it never leaked again.

ok.. call me stupid. what is this "Indian Head" stuff.

Thanks for the info guys, I switched to ultra black RTV and it seems to work fine. Looks like no gasket required.

Just say no to "ultra leaking blue" RTV :mad:

Phil

Get the "Right Stuff" it is gasket in a cheese whiz typr can. The most awsone stuff out there. About a0-15 bucks a can.