From:Trucktinker
Replaced rear seal. Filled to proper level. No leaks for several days, then about two quarts on floor. Someone told me that if driven once a week, this won't happen. Why won't it leak if driven once a week? So I have experimented for a few weeks and found, bringing the level up to one quart low and running a few minutes (back and forth from "L" to "R" a few times) and let set with pans under rear and shift linkage, only a few drops in each pan after about three or four days. The dipstick will show just a tad at the end with the engine off and will build just a bit each day. More drops seem to start where the shifter rod goes in than anywhere else? Could this happen because it takes several days for the torque converter to leak down into the sump in the transmission and build-up to the shifter rod, hence the only leak is comming from that seal? The only reason I have'nt put in the last quart is so it won't leak back out and have to be strained to be put back in. I could be way off base on this, but it is the only thing that seem to make sense. The plug is out of the bell housing and no leak there? Anyone else have any ideas?
Truck Tinker