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Collars for FAST XFI BS3 Racepak HOLLEY EFI KIT
18 lug reluctors and sensors
S-37x-J8 |
Drive Shaft Speed Kit
8 Magnet |
WEB Price
$180 |
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Works with any kind of EFI or data logger.
Complete Speed Kits include
Stainless body Sensor, L bracket, and a split collar.
1.812" available below
Click here for sizing info
Direct bolt on for
Ford 9 " with aftermarket (not stock) yokes.
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Includes setup
instructions for DL-32 & AuxBox |
S-37x-J |
1.812 speed kit |
WEB Price
$210 |
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S-37x-J |
Drive Shaft Speed Kit
4 magnet |
WEB Price
$155 |
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Complete Speed Kits include
Stainless body Sensor, L bracket, 4 magnets and a split collar.
Works with any EFI/ECU
Direct bolt on for
Ford 9 " with aftermarket (not stock) yokes.
2 1/8" is the only size available
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S-363 |
Speed Sensor |
WEB Price
$96 |
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Works with any data or EFI system
5/16-24 SS
threaded body. Required for Jerico, Lenco, Strange Ultra case, etc for clutch RPM. Also
works well on motorcycle and other tight clearance applications.
Requires magnets oriented SOUTH. It has an imbedded pull-up resistor.
Requires magnets on rotating component
S-363 in a
Strange Ultra case - click to expand |
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Click Here for steel tooth / reluctor wheel style Drive Shaft speed sensors and wheels. |
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S-361 |
Speed Sensor |
WEB Price
$28 |
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2 wire reed switch - plastic body 5/16
fine thread . This
is the speed/shaft sensor supplied in Racepak V300 and earlier (not
V300SD or Sportsman), Edelbrock Qwikdata and others (without their
connector) Requires magnets on rotating component.
Racepak part number 800-SS-PRO-5
Edelbrock part number 91116
If you need a 3/8" 2 wire sensor get a MSD 8159 |
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S-366 |
Speed Sensor Magnets |
WEB Price
$5 |
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Two 1/4" x 1/4" magnets with
South Pole identified for use with S-365 Sensor
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S-367 |
L bracket |
WEB Price
$13 |
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Universal L bracket to mount
speed sensor
7/16" hole on short side 5/16" x 3/4" slot on long side
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Split Collars
S-37x |
Split Collar - 4 Magnets |
WEB Price
$63 |
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When ordering choose from the following
sizes:
Click here for sizing info
2.125" Popular Strange Engineering size
Yes you can remove any number of magnets.
And yes, it's common on 12 bolts, Dana's and 9" Fords with stock yokes
to open up the hole to some unusual size/shape. It's not a
crankshaft - if you keep it within .050 of straight/round, your sensor
will see the magnet.
Magnets are oriented South side out
(required to work on Racepak, MSI and most other hall effect sensors) |
Includes 4 magnets and stainless hardware.
L bracket available above |
S-37x8 |
Split Collar - 8 Magnets |
WEB Price
$90 |
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Click Here for 8 magnet collars
Cick here for 16 lug collars
Shaft Collar details and sizing

Measure the size of your pinion yoke
<<<< here to determine grip diameter |