Fluid Capacities For Front Axle & Rear End

[Exalt3]

I cannot find the capacities for the Av 2500 front axle & rear end. I have 7000 miles on ours and want to change the fluids out, now that the initial break-in period is over.

We live in Monument, CO and are running Mobil1 0W-30 (winter is coming and it gets c o l d here!). I want to use Mobil1 synthetics in the front and rear end also.

Where does Chevy keep capacity info? I have searched high and low, to no avail.

Also, the owner's manual lists the correct oil filter for the 2500 as PF59; however the vehicle actually had a PF454 as original equipment. Does anyone have any idea as to what's up with that?

Thanks!!!

 

[spyder63]

I'm not sure about the differential capacities. I did do some checking on the oil filters. The 4.8, 5.3, 6.0 liter engines use the PF-59 filters. the 8.1 liter engines use the PF454 type. You didn't say what engine you have in your AV. Hope this is some help.

 

[Exalt3]

...All of the 2500's are 8.1L engines. The owner's manual lists the PF59 for the 8.1L also.

 

[spyder63]

exalt3. Do you know what the difference is between the PF59 and the PF454? If the PF454 is a longer/bigger filter I would be interested in using it on my 5.3 L if it will fit. Thanks

 

[Exalt3]

Regarding the 2 filter sizes: All of the auto parts houses in my area are out of both sizes>>I too, want to make visual comparisons. If I do find them in stock somewhere, I will make a posting regarding my observations.

Blessings!