[RESOLVED] transfer case capacity

[akira235]

my haynes manual says .3 quarts but that just doesn't seem right, because according to the manual it should also leak back out of the filler hole once it is full. so whats going on here? cause i put .3 in and it definitely wasn't leaking back out.

 

[jrohner]

They don't hold much. I was thinking they held around 8 ounces, and .3 qts is 9.6 ounces, so what you are saying sounds about right to me.

 

[twicks69]

It actually is around 0.5 qts. The rear diff takes around 0.9 qts. The transmission takes around 2.4-2.5 qts.

Good luck,

 

[4pistons]

No matter what capacity a manual, or a tech guide, or a blogger tells you fill it until it dribbles back out of the hole. It's the ONLY way to know it's full. You certainly don't want the transfer case low on oil!!

Rick - '91 GSX

 

[akira235]

but in retrospect, when filling the transfer case, i need to get under the car, so how do i go about doing that and keeping the t'case level so i don't overfill?

 

[4pistons]

The miniscule amount you may 'overfill' it is neglible. There's still plenty of space in the case to take up that little extra oil. Even if you WAY overfilled it somehow, there's a vent on top of the case it would spew out of. Overfilling is much better than underfilling!

If you're really anal about it jack up the rear of the car the same as the front and go for it.

Rick - '91 GSX

 

[akira235]

thanks, wasn't really sure if overfill would be problematic or not.

 

[4gsx63]

The miniscule amount you may 'overfill' it is neglible. There's still plenty of space in the case to take up that little extra oil. Even if you WAY overfilled it somehow, there's a vent on top of the case it would spew out of. Overfilling is much better than underfilling!

If you're really anal about it jack up the rear of the car the same as the front and go for it.

Rick - '91 GSX

If you overfilled the tranny, it can leak out of the axle seals from all the pressures. The same goes for engine oil. I usually follow the factory recommend amount and no more. More won't necessary mean bad but it can become wasted since these fluids aren't cheap. This is just my personal opinion.

 

[illeffekt vr-4]

Was your car level when you filled it up?

 

[Rock2610d]

I know this is an old thread but I wanted to give my experience.

Put my car up on ramps and filled transfer case 3 months ago (1800 miles). It took .9 quarts. I know manual says about 1/2 quart but I filled until it came out hole.

Last week I noticed what appeared to be a leak....transfer case oil flung onto underside of car. So, I figure new yoke and seal time...right. Can't hurt because they are 18 years old.

When I drained my transfer case there was right at 1/2 quart of lube still in it.

Is it possible my seals and plug are good and it just got rid of the excess oil?

 

[Archer Fabrications]

Yes, it came out the vent breather on top
Of the tcase, happened to me too when i over filled, was like wtf? But yeah. You fill it when the car is LEVEL not on a steep incline.

 

[Rock2610d]

That's great...I will refill with new oil...wash everything off and keep an eye on it.