Hey crawler83,
This is correct in that the G-series transmissions use a forward shift style transfercase where as the L-series use a top shift style transfercase. But you can still use a top shift style t/case with a G-series as long as you block the now empty shifter hole on the rear tailhousing (where the normal forward shifting shifter would be).
BUT!! I strongly suggest that you do NOT use a G-series transmission with a V6!! It is not the best choice in terms of strength. I would recommend using a W56 (1985-1988 EF), or the best choice, I would strongly recommend using a R151F (1986-1987 Turbo EFI) transmission.
I have heard of guys running G-trans behind Torque engines, but they never hold up for long.
Regards,
BigMike
