I owned a 1969 FJ40. Converted to diesel. In that the vacuum switch to on the 4x4 is not installed when i bought it. any place to buy the switch ? Is there a way to have a separate method to have this switch?
IIRC on a 1969 FJ40 there is the 3.8Litre "F" engine with the J30 three-speed transmission and a one-piece transfer case. On this set-up there is a vacuum shift for the transfer case located on the dashboard.
You need to tell us more about which diesel engine has been installed in this FJ40, which transmission was used in the swap, etc.