M1097A2 w/4L80E transfer case capacity?

[LCA078]

As I continue to go over my 'new to me' 1097A2 with a fine tooth comb, I tried adding 3.35qt's of Dextron III to the transfer case since it was drained at the mil turn-in. 3.35qts is per the -10 capacities list but at best I can get maybe 2 1/2 qts in the TC. Am I missing something or using the wrong TM?

 

[DREDnot]

Make sure you are parked on a flat surface. Fill till it reaches the edge of the fill hole and a little will trickle out. That's full.

 

[LCA078]

Rgr. It's still on the trailer so when I filled it the first time, the front was tilted up a bit and I thought that was the issue. I lowered the front of the trailer to the floor so the trailer was slightly tilted forward, giving the hmmwv a slight downward tilt. Maybe put in only another cup or so of fluid before it overflowed. Maybe just a hair over 2 1/2 qts overall. Just surprised this capacity is that far off from the TM.

 

[DREDnot]

Thats weird but to my knowledge all transfer cases get filled to the fill hole and no higher for obvious reasons. Being on a level surface is required. take a long level to your trailer...front to back AND side to side... just in case

 

[LCA078]

I tossed a level on the trailer as requested. Trailer was slightly nose down but pretty level side to side. I even measured the hmmwv and it also pretty level side to side per the bumper. I couldn't find a straight section to measure the front to back of the hmmwv but my calibrated eyeball says slight front downward tilt.

I even thought maybe the TC was rotated too much to the left or ccw so the fluid level would be skewed so I took a pic with the level next to it. At least the fill port is pretty much directly above the drain port...which I assume is correct. But since I don't have another truck to compare it to, I can't be 100% positive on the correct orientation or clockage of the TC.

And per the 24P-1, there are three variants of the TC so maybe one variant is particularly less than the 3.35qt ??? BVY is the UOC for the M1097A2 but I didn't look for the p/n on my TC to verify.


I won't worry about it much unless the folks here tell me otherwise.