Rear differential fluid on a 2015 Chevy Silverado

[Tyreese2754]

I have a 2015 Chevy Silverado 1500. I changed my rear differential and put three quarts in, but still wasnt at the center plug in the middle to pour out. Do I need to add more until it get to the top of it?

[Z45]

A 1500 should not take 3 qts in the rear. Did you have it on level ground?  Must be level to fill with accurate amount!

Does the truck have the NHT max towing option?

9.5" rg rear diff is 2.75 qts (w/NHT)

8.6" rg rear diff is 2.1 qts

 

Edited April 22, 2020 by elcamino

[Tyreese2754]

I had it level. Im pretty sure its the 9.5. Is it suppose to drain out of the center fill cap when its completely filled?

[davester]

Is it the original diff cover?  Non-oem covers are hit and miss as to whether they have the fill port at the right level.

[txab]

 

[Tyreese2754]

2 hours ago, davester said:

Is it the original diff cover?  Non-oem covers are hit and miss as to whether they have the fill port at the right level.

Yeah its the stock cover

[amxguy1970]

Was the cover on? 

 

Sorry, I had to. Unless it is an aftermarket cover or was angled a bunch it shouldn't take over 3qts. 

 

Hope you get it figured out, mine was easy to change (though I really with they would add a drain plug like on the GTO, so much easier!).

 

Tyler

[redwngr]

6 hours ago, Tyreese2754 said:

I had it level. Im pretty sure its the 9.5. Is it suppose to drain out of the center fill cap when its completely filled?

. For all 4.3L and 5.3L 1500 Series applications, the proper level is 1.0 mm to 19.0 mm (0.04 in to 0.7 in) below the bottom of the fill hole, located on the rear axle.  

 

. For 6.2L 1500 Series applications, the proper level is from 15 mm to 40 mm (0.6 in to 1.6 in) below the bottom of the fill plug hole, located on the rear axle.  

 

. For all 6.0L 2500HD Series applications, the proper level is from 0 mm to 13 mm (0 to 0.5 in) below the bottom of the fill plug hole, located on the rear axle.

. For all 6.6L Duramax Diesel 2500HD Series applications and all 3500 Series applications, the proper level is from 17 mm to 21 mm (0.6 in to 0.8 in) below the bottom of the fill plug hole, located on the rear axle.  

 

Front Axle (1500 Series) – Four-Wheel Drive SAE 80W-90 Axle Lubricant (GM Part No. 89021671, in Canada 89021672).

 

Rear Axle (1500) SAE 75W-85 Synthetic Axle Lubricant (GM Part No. 19300457, in Canada 19300458).

 

Front and Rear Axle (2500/3500) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88900401, in Canada 89021678).