Thanks for the replies. I changed (half) the fluid and the filter. I used to take it to Jiffy Lube. They used to have 7176. Now they have Dexron, and another "all-purpose" fluid from Pennzoil. I bought 5 quarts of Quaker State ATF3 and did it myself. The filter came with a cork/rubber gasket, but I decided to user Permatex "The Right Stuff". No leaks. Reverse works. Transmission shifts smoothly. All is well.