How much gear oil does a Chevy 12 bolt rear end hold?

12 Bolt Car differentials will take between 2-3 quarts dry for most covers. Any good name brand gear oil should be just fine.

How do I lubricate my rear differential?

1. Step 1: Secure the vehicle on jack stands or ramps.
2. Step 2: Allow time for the gear oil to completely drain.
3. Step 3: Locate and remove the gear oil fill bolt.
4. Step 4: Use a pump to slowly add the recommended type of gear oil to the differential.

Do you need synthetic Lube for 12 bolt Posi?

Now is a synthetic REQUIRED, not unless the item WAS setup to only operate with it. Like some of the newer SULEV vehicles are using 0w20 synthetic because synthetics are only form of lube that would perform at that low of weight. Reason for it is less viscosity means less oil in chamber to burn, and less pumping loss of power. Now do we NEED THEM?

What’s the correct gear oil for a 12 bolt?

Had a guy go through the rear end for my 70 Chevelle. Its a 12 bolt posi. I had the gears changed from 3:31’s to 3:73’s. I have the “GM” posi additive. I just need to know what wt. gear oil I should use. I did a search but didn’t see that thread. Does anyone know what wt the Moroso gear climbing lube is?

What kind of lubricant do you use on a 12 bolt?

Purchase 3 Quarts of Valvoline 80W90 and the GM Limited Slip Additive. Do not use Synthetic Oil. Lucas is another “climbing” lubricant.

What kind of oil does a GM 10 bolt take?

All GM 10 and 12 bolt rears take 3 23 ounce bottles of of this oil. Plus, positraction rears will take 2 bottles of posi additive. So, whether you call it rear end dope, rear end gear oil, diff fluid or rear end diff lube, Midnight Oil has you covered with the original stuff. There are no reviews yet. You must be logged in to post a review.