Ospho too. It's the same basic stuff as the POR-15 primer- pretty much phosphoric acid. Mine had a few pin holes that would weep the gear oil, but not so big that I worried about the JB leaking back through to the inside.


Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand!
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 65k
Daughter's: 06 Eclipse, Keeping it Mitsu!
FSMs: MitsubishiLinks.com