assembly ready to bolt onto firewall bulkhead engine harness lassic U pdate Series front light The bulkhead from this front light kit slides into the bulkhead from the engine kit (bag ), the bulkhead from the rear body kit (bag M) then slides in behind the front light and snaps in place as shown. fter snapping together, then bolt the assembly into the dash harness firewall using the attached bolt. fter all wires are installed from this kit, the bulkhead s should have die-electric grease applied to the terminals and silicone sealer applied to the outside of the s as a moisture seal. merican utowire also sells factory OM style harness wrap. this is the same stuff used on original Truck harnesses! If you want that OM look with your lassic Update wiring system, then give us a call and order p/n R0067108! sheet 1 ook! rear body to back side of www.americanautowire.com 856-933-0801 bag 1973-82 hevy Truck RONT IT IT 510349
lassic U pdate Series PRIN MP WIRS T U turn Route this wire to the turn signal lamp extension, cut to length and install terminal. Insert into and connect with the disconnect on signal lamp extension. U R turn Route this wire to the R turn signal lamp extension, cut to length and install terminal. Insert into and connect with the disconnect on signal lamp extension. ROWN Parking ights Route this wire to the turn signal lamp extension, cut to length, double with the cut off portion of wire into terminal. Insert into and connect with the disconnect on signal lamp extension. Route the other end of the cut off portion to the R turn signal lamp extension, cut to length and install terminal. Insert into and connect with the disconnect on signal lamp extension. RONT IT WIRS T RN TN OTR WIRS TN eadlight I eam eadlight OW eam rake pressure 1973-79 VY TRU Route this wire to the headlight, cut to length, double with the cut off portion of wire into terminal. Insert into in the side cavity of the. Route the other end of the cut off portion over to the R headlight, cut to length and install terminal. Insert into the side cavity of on the R side. Route this wire to the headlight, cut to length, double with the cut off portion of wire into terminal. Insert into in the top cavity of the. Route the other end of the cut off portion over to the R headlight, cut to length and install terminal. Insert into the top cavity of on the R side. round Route the attached ring terminal to a good chassis ground and secure with an appropriately sized screw. There is also included a body to chassis ground wire with ring terminals on either end. ttach one end to the radiator support and the other end to the chassis. If you have a brake pressure and would like to connect it, route this wire to the switch which is commonly found on the proportioning valve, that can sometimes be found on the radiator support on earlier trucks. ut to length and slide boot over the wire and install terminal on 1975-82 applications. Slide the boot over the terminal and connect to switch. On 1973-74 applications install terminal anc and connect to switch. RN orn Route this wire to the horn and cut to length, if using more than one horn, double the cut off portion of wire into terminal and insert into. Route the other end of the cut off portion of wire to the other horn and cut to length, install terminal and insert into. If using only one horn just cut to length install terminal and insert into. onnect to horn(s). ORN lectric fan If using an electric fan plug this wire into the bulkhead in the slot shown on the next page. Route to the electric fan, connect per manufacturer s instructions NOT: We highly recommend that this wire be used as the trigger wire for an electric fan relay and not to power the fan itself. sheet 2
1973-79 VY TRU lassic U pdate Series right headlight left headlight right turn signal left turn signal rh side to brake pressure radiator support to passenger (optional) to driver or (1973-74 applications) dk blue chassis lt blue orange to back side of wire entry view shown bulkhead sheet 3 lh side to electric fan recommended fan relay (not included in this kit) 1973-79 hevy ront ight
lassic U pdate Series sheet 4 PRIN MP WIRS T U turn Route this wire to the turn signal lamp extension, cut to length and install terminal. Insert into and connect with the disconnect on signal lamp extension. U R turn Route this wire to the R turn signal lamp extension, cut to length and install terminal. Insert into and connect with the disconnect on signal lamp extension. ROWN Parking ights Route this wire to the turn signal lamp extension, cut to length, double with the cut off portion of wire into terminal. Insert into and connect with the disconnect on signal lamp extension. Route the other end of the cut off portion to the R turn signal lamp extension, cut to length and install terminal. Insert into and connect with the disconnect on signal lamp extension. RONT IT WIRS T RN TN OTR WIRS TN eadlight I eam eadlight OW eam rake pressure 1980-1982 VY TRU Route this wire to the headlight, cut to length, double with the cut off portion of wire into terminal. Insert into in the side cavity of the. Route the other end of the cut off portion over to the high beam light, cut to length, double with the cut off portion of wire into terminal, and insert into. Route the other end of the cut off portion across to the R headlight, cut to length, double with the cut off portion of wire into terminal, insert into in the side cavity of the. Route the other end of the cut off portion over to the high beam light, cut to length, install terminal and insert into. Route this wire to the headlight, cut to length, double with the cut off portion of wire into terminal. Insert into in the top cavity of the. Route the other end of the cut off portion over to the R headlight, cut to length and install terminal. Insert into the top cavity of on the R side. round Plug into headlights on both side and R side. Route black ground wire that comes already plugged into to the high beam light, cut to length, double cut off portion of wire into terminal, insert into. Route the attached ring terminal to a good chassis ground and secure with an appropriately sized screw. There is also included a body to chassis ground wire with ring terminals on either end. ttach one end to the radiator support and the other end to the chassis. If you have a brake pressure and would like to connect it, route this wire to the switch which is commonly found on the proportioning valve, that can sometimes be found on the radiator support on earlier trucks. ut to length and slide boot over the wire and install terminal. Slide the boot over the terminal and connect to switch. RN orn Route this wire to the horn and cut to length, if using more than one horn, double the cut off portion of wire into terminal and insert into. Route the other end of the cut off portion of wire to the other horn and cut to length, install terminal and insert into. If using only one horn just cut to length install terminal and insert into. onnect to horn(s). ORN lectric fan If using an electric fan plug this wire into the bulkhead in the slot shown on sheet 5. Route to the electric fan, connect per manufacturer s instructions. NOT: We highly recommend that this wire be used as the trigger wire for an electric fan relay and not to power the fan itself.
1980-1982 VY TRU right headlight lassic U pdate Series left headlight ow eam igh eam right turn signal left turn signal igh eam ow eam rh side radiator support to passenger (optional) to driver to brake pressure dk blue chassis lt blue orange to back side of wire entry view shown bulkhead sheet 5 lh side to electric fan recommended fan relay (not included in this kit) 1980-82 hevy ront ight