Front and Rear Diff Fluid Change 40k Miles

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First I apologize for no pictures.

Finally got around to changing the fluids in my 22' TRX. The truck is a pavement king so no hard miles on him. Like all others the diffs were a bit low but not absurdly. I estimate I had just over 2 quarts in the rear and about 1.2 in the front.

Fluids were clean particularly the front diff. The front diff plugs has very minimal residue on them and the rear diff fluid was a bit dirtier with very little sheen to it. The rear diff plugs did have quite a bit of residue on them, particularly the fill plug which had about a 3mm thick debris coating it and the drain plug was 1-2mm of debris. Very fine particulate and nothing concerning.

Replaced with Redline fluids and I would agree that rear holds about 2.5 quarts but the front only took about 1.25 quarts.

I plan on changing in another 40k miles and will be interested to see what I find on the drain plugs more than anything else. I don't think waiting this long was detrimental in the slightest but wonder if I'll continue to see the same amount of fine particulate.

Changing the fluids is extremely easy as you can do it with the truck on the ground. I did need a fluid pump to fill the diffs because of the redline bottles, wish they made the squeeze bag version.
 
Next on the list. Did the easier first.

What fluids did you run on the T-case and transmission?
I use the Mopar spec fluid. I am sure there are compatible brands out there. The trans process is a bit more involved, pulling the pan, new filter, all 4 tires off the ground (so you can put it in drive) refilling based on trans temp, etc.

T-case 68049954AC

Trans ‎68218925AB
 
Pardon my laziness... but would you mind sharing what Redline fluid you used? 75W-85 for the front and 75W-140 for the rear?
 
I plan on changing in another 40k miles and will be interested to see what I find on the drain plugs more than anything else.
Why wait so long before checking the level plugs? I'd do it in another 1,000 miles or so to see if there was more, which the plugs couldn't/didn't catch, then maybe every 5K or so after that.

Doesn't take but a few minutes, doesn't cost anything, and could be telling.
 
I did my transfer case, and both diffs at 30 and will do every 30. I bought the kit from ravenol and was very easy with the integrated pour hose.

Transfer case is just as easy as the diff, just need the right angle to fill.
 
Why wait so long before checking the level plugs? I'd do it in another 1,000 miles or so to see if there was more, which the plugs couldn't/didn't catch, then maybe every 5K or so after that.

Doesn't take but a few minutes, doesn't cost anything, and could be telling.
I may at 5k for the rear fill plug which has the larger magnet but the front diff showed no reason to.
 
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