I don't know if you can use the chevy one or not but you are always best off to use toyota gaskets. you will need to pull the tranny and xfer. Mine was a mess too when I got it and I replaced the rear main and every engine, tranny and xfer gasket. I did the tranny and xfer while it was out.
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1964 FJ40 | 1966 M416 | 1976 FJ40 | 1985 BJ70 Volvo Power| 1997 FZJ80 | TDI commuter car
Rising Sun; Former CLCC
You should be able to delete your own thread. Communists abound