nelson7172
NAXJA Forum User
- Location
- Villa Ridge, Mo.
I have a 8.25 with a 4* shim. Any idea how much fluid so the pinion bearing doesn't burn up? Also will be driven on the highway.
Last edited:
-
Welcome to the new NAXJA Forum! If your password does not work, please use "Forgot your password?" link on the log-in page. Please feel free to reach out to [email protected] if we can provide any assistance.
rear diff overfill
- Thread starter nelson7172
- Start date
CanMan
NAXJA Forum User
- Location
- Lake Tapps, WA
You'll be fine. If you are super worried about it, add 1 or 2 oz through the breather.
Considering how many millions of vehicles never (literally) have their diff fluid changed/topped off, I wouldn't worry about it too much. You could always put the rear end up on jackstands (with chocks at the front tires) and fill it up that way-it should cancel out the increased angle the shim provides.
magimerlin
NAXJA Forum User
- Location
- Flatonia, Tx
I use a 6 degree shim....I top mine off threw the breather.
fubar XJ
NAXJA Forum User
- Location
- Bothell, WA
That's what I do, jack it up about 8 inches and top it off. Both of my Jeeps' rear diffs are clocked up for SYEs.
jeeperjohn
NAXJA Forum User
- Location
- Temecula, CA
If you put a total of 1-1/2 quarts of diff oil in you will be good.
2001XJ
NAXJA Forum User
- Location
- Canton, MI
I know its good to overfill just to "make sure" but won't the extra fluid eventually leak out the outer axles seals, in essence returning it back to "normal" levels?
jeeperjohn
NAXJA Forum User
- Location
- Temecula, CA
It shouldn't get past the outer seals if they are good but it can puke out the vent if overfilled.
