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DSE F501-300 (Rev 06/28/19)  

Page 2 of 15 

 

This kit features a seven speed wiper system with five delays, low speed, and high speed. The 
new pitman arm, included in the kit, connects directly  to your existing wiper linkage. A rotary 
switch is also included, along with a complete wiring harness. 
 
This  kit  does  feature  a  washer  pump  option  as  the  wiper  switch  does  have  a  push  button 
function. The wiring harness/control module is equipped with a power and ground wire to install 
an inline electric washer pump. Detroit Speed does offer a washer pump kit available as part 
number 121102. 

 
 

Hardware Kit Checklist 

 Detroit Speed 1973-83 C10 Wiper Kit 

Part Number 

Description 

Quantity  Check 

 

9312209 

1973-74 C10 Hardware Bag 

 

9312206 

Wiper Switch Adapter Assembly 

 

9912060 

1-

1/4” Firewall Grommet

 

 

9912244 

Billet Aluminum Wiper Switch Knob 

 

9912044 

3/8” AN Stainless 

Steel Washer 

 

950054FS 

10-

24 x 3/4”L Button Head Screw

 

 

980096FS 

5/16”

-

18 x 1”L Hex Head Flange Bolt

 

 

970043FS 

5/16” SAE Washer

 

 

960033FS 

5/16”

-18 Nylock Nut 

 

 

9312212 

1975-83 C10 Hardware Bag 

 

9312210 

Wiper Switch LED Light Box Assembly 

 

9912365 

Acrylic Wiper Cover Plate 

 

9912367 

LED Dimmer 

 

9912364 

Pre-Wired White LED 

 

9912366 

2-Wire Lever Terminal Block 

 

9912060 

1-

1/4” Firewall Grommet

 

 

9912244 

Billet Aluminum Wiper Switch Knob 

 

950128FS 

No. 8 x 5/8”L 

Sheet Metal Screw 

 

950054FS 

10-

24 x 3/4”L Button Head Screw

 

 

980096FS 

5/16”

-

18 x 1”L Hex Head Flange Bolt

 

 

970043FS 

5/16” SAE Washer

 

 

960033FS 

5/16”

-18 Nylock Nut 

 

 
 

Installation Instructions: 

 
1.

 

Before beginning, please ensure that the parts included with your kit match the parts list 
above.  E

nsure  that  the  factory  wiper  system  is  in  its  “Parked”  position. 

Disconnect  the 

battery power by removing the negative battery lead from the battery.  

 
2.

 

Mark the wiper arms’ parked location with 

masking tape for reference (Figure 2 on the next 

page). It will be easier to access the wiper linkage with the wiper arms midway through their 
travel.  

 

Summary of Contents for Selecta-Speed 121633

Page 1: ...road The Detroit Speed Selecta Speed Wiper Kit provides you with the performance and convenience of a late model wiper system in a package that easily and cleanly mounts in your 1973 83 C10 GM Truck Figure 1 PN 121634 Shown Item Description Quantity 1 Wiper Motor Assembly 1 2 Wiper Control Module w Mounting Plate 1 3 Wiper Harness 1 4 Wiper Switch Assembly 1 5 Hardware Kit 1 6 Instructions 1 ...

Page 2: ...S 10 24 x 3 4 L Button Head Screw 3 980096FS 5 16 18 x 1 L Hex Head Flange Bolt 1 970043FS 5 16 SAE Washer 1 960033FS 5 16 18 Nylock Nut 1 9312212 1975 83 C10 Hardware Bag 1 9312210 Wiper Switch LED Light Box Assembly 1 9912365 Acrylic Wiper Cover Plate 1 9912367 LED Dimmer 1 9912364 Pre Wired White LED 1 9912366 2 Wire Lever Terminal Block 4 9912060 1 1 4 Firewall Grommet 1 9912244 Billet Aluminu...

Page 3: ...t be used with the new Selecta Speed Wiper Kit A custom harness is provided to replace the original harness NOTE If you decide to cut the old wires please pay special attention to properly terminate the wire ends to avoid possible shorting 6 Mount the new wiper motor assembly to the firewall Use the three supplied 10 24 x 3 4 L button head screws to mount the wiper motor assembly to the firewall T...

Page 4: ...olding the gauge panel to the dash and remove CAUTION The gauge panel can flex a little but on certain trucks it is necessary to remove the headlight knob first in order to remove the gauge panel Pull the headlight switch out as far as it will go Press down on the release button and pull out the headlight knob Figure 5 Figure 5 Remove Headlight Knob 9 Remove the 2 screws holding the stock wiper sw...

Page 5: ... 12 11 Once the wiper switch is removed from the dash you will need to cut the A and E wires from the back of the original wiper switch connector in order to use the LED light bulb Figure 7 NOTE The A wire is gray positive and the E wire is black ground Cut the wires as close to the terminals as possible Figure 7 Cut A E Wires 12 Strip the wires in the vehicle that were cut for the light bulb the ...

Page 6: ...nto Light Box Assembly 14 Remove the star washer and hex nut from the new wiper switch Install the wiper switch through the back of the light box assembly Make sure the anti rotation tab on the wiper switch locks into the anti rotation hole on the light box assembly Figure 10 Figure 10 Insert Wiper Switch into Light Box 15 Install the star washer and hex nut that was removed in the previous step a...

Page 7: ...ure 12 Lift up the orange levers of the T junction connectors Using one of the connectors feed the gray wire from the original harness into one hole and the red wire from the dimmer into the other hole until they bottom out Using a second connector feed the black wire from the harness into one hole and the black wire from the dimmer into the other hole until they bottom out Close the orange levers...

Page 8: ...D dimmer connectors paying close attention to the wire colors The black wire on the LED should connect to the black wire on the dimmer and the red wire on the LED should connect to the red wire on the dimmer Figure 14 NOTE Instead of using the connectors you may solder and heat shrink the wires together Wiring the LED or dimmer backwards will not cause any damage The components simply will not wor...

Page 9: ...If the LED does not illuminate or respond to button presses you may have one of the components wired backwards Simply double check your wiring and fix as needed Also ensure that the small LED wires are not crushed twisted or bound up Figure 15 Three Buttons on LED Dimmer 21 The Mode button enters dynamic mode This will cause the wiper LED to flash or flicker This function is likely not desired for...

Page 10: ...ld the adapter plate to the wiper switch by threading on the switch hex nut and provided 3 8 AN washer and tighten Figure 17 Install Switch Adapter Plate 1973 74 shown 24 For the 1973 74 application the original fasteners will be used to install the new switch assembly into the dash Figure 18 For the 1975 83 application place the provided acrylic wiper cover plate over the light box assembly Use t...

Page 11: ...re the set screw locks onto the flat on the switch shaft Figure 20 Install Wiper Knob 1973 74 Figure 21 Install Wiper Knob 1978 83 26 Route the wiper motor connector side of the wiring harness Figure 22 through the firewall using an existing hole if possible You can also drill a new hole in the firewall using a 1 1 4 hole saw or Uni Bit in order to allow the wiper motor connector to pass through t...

Page 12: ...tor move the grommet on the loom and install it into the firewall to seal the engine compartment from the inside of the vehicle Figure 23 on the next page Figure 23 Install Wiper Motor Harness 28 The Detroit Speed Selecta Speed harness does include a weather pack connector to install an optional electric inline washer pump into your vehicle Figure 24 Detroit Speed does offer a washer pump kit you ...

Page 13: ...kit use the instructions from that kit to complete the washer pump kit installation 30 Next you will need to install the wiper control module under the dash It can be mounted anywhere you prefer with the provided 5 16 bolt washer Nylock nut however there is a recommended location next to the kick panel above the hood release 31 Use a 1 2 socket to remove the bolt above the hood release Remove the ...

Page 14: ... wiring harness connectors into the control module Figure 26 Figure 26 Connect Wiper Switch Harness to Module 33 Connect the yellow wire under the dash to a 12V ignition or accessory switched source Circuit is active when the key is in the run postion This lead is supplied with an inline 30 amp ATO fuse Wire Harness Wiper Switch Remove Bolt ...

Page 15: ... removed NOTE In some cases high energy ignition systems have caused interference with the correct operation of the Selecta Speed Wiper Kit due to spark plug wires routed closely to the wiper motor If this occurs re routing your spark plug wires may be neccesary If you have any questions before or during the installation of this product please contact Detroit Speed Inc at tech detroitspeed com or ...

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