I daily drive my Aspen, and the trans leaks like a sumbitch. Lucas Transmission Conditioner actually slowed the leaks and improved shift quality. I haven't tried their stop leak yet, but I am impressed with the Conditioner for sure.
Ha! Car I am referring to is 79 Volare, !!!! your's cousin!! Its the first F body I ever had. I really like the car, how it drives, its profile, but I have never liked any plastic grills though!!!