It could be an intermitant clog? Just make sure the axle vent is clear. When I checked mine I took it off and blew compressed air through it. Surprisingly alot of stuff came out, how it got there I don't know? It helped my repetitive leak. lol
'84 CJ-7, 6" lift, 33" BFG's, I6, .030 Over, Comp Cam, 400cfm Weber, K&N, T-18, 4 Core, Snorkel, D60 Detroit, Custom CV Driveshaft, 1350 U-Joints, D30 True Trac, Alloy shafts, S.R.S. w/ buggy springs, Custom Folding Shackles and Spring Hinges, Custum Tire Rack, Designed On Board Air, Optima's. Sneaky Jeep Owner #3.