Marc / Turbohunter, axle bearing question

[My427stang]

Marc, you said you used the Moser bearings, did you use the 9508M or 9508B?

The difference is the M does not have an outer o-ring and says it requires the factory axle seal, the B has an outer o-ring and looks as if it doesn't need the axle seal

I am thinking of going with the B and leaving the seals in there, but wondering what you did

Thanks!

[ScotiaFE]

I have run 2 big bearing after market housings and tired both types of bearings.
The best I've seen in my experience is the sealed bearing with the inner seal
and a smear of goo on the outer metal case of the seal and tap it in.
The o ring type bearing will leak without a inner seal. BTDT

[turbohunter]

Hmm
Wasn't me Ross.
May have been Doug (cjshaker).
I let Currie build it and checking my paperwork there is no bearing brand mentioned.

[jayb]

I have run 2 big bearing after market housings and tired both types of bearings.
The best I've seen in my experience is the sealed bearing with the inner seal
and a smear of goo on the outer metal case of the seal and tap it in.
The o ring type bearing will leak without a inner seal. BTDT

Howie, I've run bearings I got from Mark Williams with the O-ring around the bearing OD for years in my Mach 1, and never had a leak.  No inner seal, and no goo.  Pretty sure I've got the same setup in my Galaxie, and it doesn't leak either.  Maybe there's an issue with your axle housing ID?

[Nightmist66]

Possibly a sharp edge that the o ring catches on sliding in and/or grooves worn into the axle tube where the bearing sits. Mine has a couple small grooves around the bearing. I just attribute that to being the original housing and having 28 spline axles changed regularly in old racing days. I wouldn't try the o ring bearings on mine unless I switch to a new housing. I contemplated using the o rings when I rebuilt the rear after it grenaded, but after seeing the grooves, I opted to stick with the traditional seals. Never had a problem with those.

[turbohunter]

Speaking of sharp edges.
When I re did my truck bearings there was a (relatively) huge groove/ridge cast into the end under the bearing which had over the years formed itself to it and of course leaked.
It didn't look like a bearing install screw up, it actually looked like it was part of the casting.
I'd have to say it leaked darn near from new.
After a little carefull grinding it doesn't leak a bit now.
Guess the moral is to check the housing carefully before proceeding.

[My427stang]

My Mosers don't leak on the Mustang either, been in and out of the car with the same o-rings since 1998

I'll likely leave the seals in there, they aren't hurting anything, but hoping things seal up better

BTW, I found a plugged vent, likely the issue all along, but I still plan to put the nice bearings in it

[ScotiaFE]

To be honest I don't know why it leaked.
And I have not even looked at the thing in (and I hate to say this) YEARS.
It's been on the back burner for far to long.