Re-install the original circuit board onto the Simco Instrument Module by engaging the circuit board into the gauge pins and pressing on the back of the circuit board until it is fully seated to the back of the white housing.

Caution: The circuit board contains sensitive electronic components. Great care should be taken when handling the circuit board. Avoid touching components on the circuit board directly and handle the circuit board by its edges. Static shock could damage the circuit board.
Plug the odometer cable back into the circuit board connector (See previous figure 5).

Remove all of the six white lamps (yellow arrows) on the backside of the circuit board by turning the lamps ¼ turn counter-clockwise with a pair of pliers. Do not remove the gray, black, or red lamp sockets. Plug the new lamp connector (red arrow) into the empty lamp socket as shown.

Note 1: There are two lamp connectors included. Use the one that is labeled with the correct model year of the original cluster. For 1999-2000 model years, use the 2001-201 connectors. For 2001-2003 model years, use the 2017-207 connectors.

Note 2: For 1999-2000 model years, please note that the lamp connector MUST have the red wire side facing down toward the bottom of the cluster. For 2001-2003 model years, please note that the lamp connector MUST have the red wire side facing up toward the top of the cluster.

Place the original cluster white cover on the back of the circuit board while feeding the lamp connector through the cover lamp hole. Connect the power inverter connector and the lamp connector together (red arrow). Install the included two T-15 and the four Phillips screws (yellow arrows) through the cover and into the Instrument module. Do NOT over tighten the four Phillips screws.

Caution: Damage can occur if screws are placed in the wrong location. They are not meant to be interchanged. Review the figure carefully.

The Simco Instrument Cluster is now ready for the Vehicle Gear Indicator (PRNDL) Installation.

Vehicle Gear Indicator (PRNDL) Installation

Remove the two #2 Phil-pan screw from the front of the Simco Instrument Module and slide the PRNDL assembly from the bottom of the cluster.

Attach the original Instrument Cluster PRNDL cable from the vehicle to the new Simco Instrument Module PRNDL assembly by the following steps from left to right.

1. Slide the small Orange PRNDL pointer, with your hand, over to the park indication “P” and remove (pull) the small wire from the back of pointer.

2. Looking at the top of the PRNDL assembly, push downward on the white plastic square marked 1 and slide the cable assembly from the side of the PRNDL assembly.

3. Reinstall the cable assembly onto the new PRNDL assembly and reattach the small wire to the back of the pointer.

Finally, set the Simco Instrument Cluster in position, then slide the PRNDL assembly into the bottom of the Simco cluster and reinstall the two #2 Phil-pan screw in the front to hold it in place.

Connect the negative terminal to the battery and start vehicle to verify proper operation.

*We recommend checking the shift lever location and verifying that the PRNDL indicator corresponds with each gear.

Sources Simco Ltd. 1 DeMille Rd. Lapeer, MI 48446 (810) 245-0188 Truck Hownd www.simcoltd.com info@simcoltd.com Installation by: Jason Coe