Really hoping my axle isn't getting ready to blow.
Yesterday I noticed a sound coming from the rear, somewhere under the rear seats and floor, the best way I candescribe it is a gurgling whistle not super loud, just audible if I was on a road by myself.. It was only happening when I would be in gear and letting off the gas. It would go away if I was cruising or if I had the clutch disengaged. Today it was worse, I can hear it when accelerating, and its louder when I downshift and decellerate. If I'm going around 15mph in first but with my foot on the clutch I can just barely hear it. If I pit it in neutral it goes away immediately. I checked the fluid in the transmission and rear diff, I didn't have an Allen key the right size to check the transfer case but there are no signs of leaking. I also checked the joints on the rear drive shaft and there is no play in it at all.
Anyone know what my problem might be?