Slow a seeping rear differential?

Any good ways to slow the fluid loss of a seeping differential? When spring comes around, the whole rear end is coming out for a total refresher. But until then I just want to slow the loss.

Thoughts?

lucas offer anything for rear diff?

drain the fluid?

how much fluid are you losing?

Just paint it red. It seems to make most drifters think their crappy parts won't fail.

Sawdust?

Make sure the breather isn't blocked, then top it up and forget about it. Gear oil drips very very slowly, unless the hole is quite large.

Clean well then brush on a tube of jb weld thinned with laqure thinner and painted on or fiberglass resin.

It's a very slow leak. It's benign for all intensive purposes, but I figure that I might as well try SOMETHING while I'm down there.

Also, how do you guys fill that sucker? SWMBO's turkey baster? Your turkey baster?

I use a tube snaked down from somewhere in the trunk. Usually there is a hole somewhere

Where's the leak?

doesn't matter who's turkey baster it is, they all clean up in Dawn dish water. and at T'day dinner if anybody asks about that twang in the turkey gravy yur just trying some new spices

It's coming from where the case splits. The axle seals don't seem to be leaking... too much anyway.

If it's the diff cover, pull it off, toss in a new bushing, slap some RTV and re-install.

if it comes from the split... an hour of your time, some lube, and you can have a less leaky rear

familytruckster wrote: If it's the diff cover, pull it off, toss in a new bushing, slap some RTV and re-install.

Is the job really that easy? I honestly didn't spend much time looking at the job, I just assumed it was rather involved. This is the first RWD car I've ever really worked on, and I've never serviced Subaru rear diff either.

I snagged the diff cover gasket when I bought my control arm figuring I'd keep it on hand in case I had time to do it.

So if the job is that easy I'll just throw it in.

Yeah, pretty easy. Did it the other week, I tossed a spare cover on with a new diff bushing. 1 hr job, with a few breaks.

familytruckster wrote: Yeah, pretty easy. Did it the other week, I tossed a spare cover on with a new diff bushing. 1 hr job, with a few breaks.

Cool. My diff bushing is in really good shape so I don't think I'll bother with that. The cover gasket was $2.50, so I figured why not. Glad I did, I'll just toss it in.

So what's the easiest way to do it?

Support diff, remove diff mount bolt, pull off case, clean surface, slight rtv+gasket, installation reverse of removal?

Is there anything else? This is sounding very breezy.

mad_machine wrote: if it comes from the split... an hour of your time, some lube, and you can have a less leaky rear

There's a joke somewhere in this sentence.

It's almost Winter in Maine. That leak is about to fix itself.

Taiden wrote:

familytruckster wrote: Yeah, pretty easy. Did it the other week, I tossed a spare cover on with a new diff bushing. 1 hr job, with a few breaks.

Cool. My diff bushing is in really good shape so I don't think I'll bother with that. The cover gasket was $2.50, so I figured why not. Glad I did, I'll just toss it in. So what's the easiest way to do it? Support diff, remove diff mount bolt, pull off case, clean surface, slight rtv+gasket, installation reverse of removal? Is there anything else? This is sounding very breezy.

Unplug speedo sensor should be in there somewhere. But yeah, that's it. oh, and Drain diff first. And before that, make sure fill plug comes out.

@ Mr. Truckster (who I haven't seen since I stopped going to CDC autocross events)...

"And before that, make sure fill plug comes out" is a seriously great bit of advice.

Ask anyone who's ever had to figure out a way to fill a diff from the bottom without:

• Removing it from the car, or...

• Drilling a hole in the cover, filling it and plugging the hole with a rubber cork.

Taiden wrote: Also, how do you guys fill that sucker? SWMBO's turkey baster? Your turkey baster?

Fluid Transfer Tool

Its a big syringe with a 20 oz capacity...perfect for filling diffs and transfer cases where the fill hole is difficult to get to.

Differential bushing ?

this is a caveman job. Did it on my '94 Formula Firebird back in the day in a gravel driveway (my mullet helped). pull the cover, scrape the old gasket off (and I mean ALL of it) and put a bead of silicone around the cover. You likely won't even need a friggen gasket....I didn't. Despite numerous warnings from the stealer who wanted $65 for a new gasket (new car at the time that was howling like a banshee due to lack of positraction lube) that it wouldn't seal without the gasket...it did seal. Never leaked again for the next 100k miles

iceracer wrote: Differential bushing ?