I have a rebuilt toploader and am wondering what fluid everyone else is using? After snooping around the internet and after contacting David Kee, Toploader Trans.Inc. They recomend draining it and using two quarts of Pennzoil 80W-90 gear lubricant every 20-25,000 miles. Just wondering? But with all the
synthetic lubricants and all just wondering what would be best? Thanks in advance.....