Hi all, give me your best guess please. My truck has a 300 cubic inch inline six engine. 209,000 thousand miles and still runs great. My only problem is the transmission leaks clean, (not burnt) fluid out of the rubber plug in the forward section of the transmission. This problem occurs when I drive 30+ continous miles without stopping and only during the heat of the summer 85-95 degree temps. I love this truck however I would rather not sink more big money into it. Keep in mind I had the transmission was replaced with a rebuilt one three years ago at a cost of $1,500. Need advice to minimize my aggrevation...Hope to keep her, thanks everyone.....John Also today I drove about 40 miles without the A/C on and found a constant drip coming from the rubber plug and the foward plate locate three inch in front of the rubber plug...thanks again.