this is best stuff since sliced bread. It really works. Just add the correct amount to a quart of the gear oil before you put each one in the lower unit. Shake it then put in the lower unit it will seal it tight as a V_ _ _ _ N. Heck i use the same gear oil with sealant in my air compressors.
http://cgi.ebay.com/STOP-OIL-LEAKS-I...spagenameZWDVW