I took the pan off a 95 LX to change the filter and found huge metal shavings. At one time I remember a hard bang and grinding noise, but also run away shift and delayed 1st engagement. When disassembling I found a screw from the valve body also in the pan. The trans appears to have been re-built at some point. Everything looked way to good for 200k. When I got to the differential I found a broken tooth on ring gear and also on the idler gear. I took the gear cover off and saw one of the alignment pins missing and the bearing exploded. The pre load of the idler seemed real tight. Does anyone think the failure happened from the pre loads too tight? or did something else get in the gears to brake the teeth and damage the bearing? The metal doesn't seem to have gotten too far through the rest of the trans. Is it likely that the shift issues are separate?