Changed the fluids in the front and rear diffs as well as the transfer case (just hit 3k miles). Pretty easy job overall. You could probably do it with the truck on the ground, but it was much easier getting the skid plates off with it up in the air a little bit.
For those wondering if you should change the fluids so soon - yes, without hesitation. I couldn’t believe how bad the rear diff fluid was. Very dark and full of glitter. No large metallic pieces. But the magnetic drain plug was caked with metals. The front diff wasn’t much better. The transfer case still looked fresh - but you might as well change it when you’re going through all the work anyway.
I also highly recommend the kit from Blauparts. All high quality Ravenol fluids. And the quart bottles come with integrated hoses that make it nice and easy to fill without special pumps.
For those wondering if you should change the fluids so soon - yes, without hesitation. I couldn’t believe how bad the rear diff fluid was. Very dark and full of glitter. No large metallic pieces. But the magnetic drain plug was caked with metals. The front diff wasn’t much better. The transfer case still looked fresh - but you might as well change it when you’re going through all the work anyway.
I also highly recommend the kit from Blauparts. All high quality Ravenol fluids. And the quart bottles come with integrated hoses that make it nice and easy to fill without special pumps.
| Front Differential Fluid |
| 2 x RAVENOL Gear Oil DGL 75W-85 GL-5 LS 1L |
| Rear Differential Fluid |
| 3 x RAVENOL Gear Oil SLS 75W-140 GL-5 LS 1L |
| Transfer Case Fluid |
| 2 x RAVENOL Transfer Case Fluid BW44 Fully Synthetic 1L |
