This is the 70 amp relay that is in the rear pillar on the left side on all Vanagon from 86-92 with stock AC.
A/C Fan Relay
A/C Compressor SD-709 for 87-92 Vanagon
Rear Evaporator for 86-92 Passenger Vanagon with overhead AC
Air Conditioning System Blower Fan for 86-92 Vanagon
Air Conditioning Receiver Drier for 86-92 2.1L