Just replaced my transfer case fluid. I ordered 2 quarts because everywhere online I found said it’ll take under 2 quarts before it starts running out of the hole. I used a suction gun to put it in and of course some gets left in the length of the tube. But I figured I’d be fine as otherwise I spilled none and it should take less than 2 quarts anyway. Not the case for me. I put it all in and still was not running out. So I take the end off the gun and tilt it to get what’s in the line in there. I got a little more in but still not “full” and I did spill some so not a full 2 quarts ended up in. Very little was spilled, though.
My question is what is the proper level. Everyone who did a video on changing it says to fill until it runs out and then let it stop dripping before plugging. But one place someone corrected someone saying that and said GM says that when filling it cold (which I was) that it should be a little below the plug. I’m not having luck finding that post again (may’ve been a youtube comment) to see if they mention exactly how far below the plug but I’m between 1/8-1/4". I also can’t find GMs recommendation.
If I’m low, I’ll order another bottle but if the lower level is the correct one, I’ll leave it where it is. Anyone know for sure?