Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Specialty Power Windows At Speedway Motors

Specialty Power Windows was founded in 1986 by Ervin and Louise Castlebery. After having their own body shop and loving old cars for 35 years they decided to sell the body shop and go into the old car hobby. Specialty Power Windows is a unique business as they are the only company in the world devoted exclusively to the manufacture of power window kits, windshield wiper kits, and related pieces for enthusiasts of old cars, street rods, trucks and vans.

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  • Specialty Power Windows WWK-2 Standard Universal Wiper Drive Kit
    Specialty Power Windows WWK-2 Standard Universal Wiper Drive Kit
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    This universal, dual wiper drive kit has two wiper shafts that are driven by a remote mounted, commercial duty, 2-speed wiper motor. The sweep is adjustable from 90°-160° in 10° increments. Wiper shafts accept arms (not included) that fit 1/2" fine spline knurls or arms that fit 1/4" shafts. 

    This complete drive kit has a standard 72" drive cable and 2-speed rotary (knob) switch.

    Manufactured by Specialty Power Windows.

    Instruction Sheet

  • Specialty Power Windows PWL-2C Power Window Conversion Kit, 2 Window
    Specialty Power Windows PWL-2C Power Window Conversion Kit, 2 Window
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    This street rod universal kit completely eliminates your old crank handle and regulator. Each kit contains lower glass channel, chrome GM switches, complete window wire harness with switch and motor plugs and flexible stainless steel wire conduit for door jam area.

    These kits only require 8-1/2" of space between glass and bottom of door. Also included are written and video instructions.

    Manufactured by Specialty Power Windows.

  • Specialty Power Windows PWL-2P Basic Power Window Conversion Kits
    Specialty Power Windows PWL-2P Basic Power Window Conversion Kits
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    This kit completely eliminates your old crank handle and regulator. Each kit contains lower glass channel, complete window wire harness with switch and motor plugs and flexible stainless steel wire conduit for door jam area.

    These kits only require 9-1/2" of space between glass and bottom of door. Also included are written and video instructions.

    Basic two window kit has no switch or wiring. Manufactured by Specialty Power Windows.

  • Specialty Power Windows WAB-01BR Billet Aluminum Wiper Arm, RH Bend
    Specialty Power Windows WAB-01BR Billet Aluminum Wiper Arm, RH Bend
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    These billet aluminum wiper arms fit the common 1/2" knurled wiper pivot and are spring loaded. Includes a trim-to-fit 10" wiper blade. Right hand, oriented by sitting in the driver's seat. Ready to polish or paint.

  • SPW 1955-57 Chevy Electric Wiper Motor Kit w/ Intermittent Feature
    SPW 1955-57 Chevy Electric Wiper Motor Kit w/ Intermittent Feature
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    Now you can get rid of that clunky unreliable OEM wiper system and replace it with a modern electric unit that features intermittent wipe. This complete kit from Specialty Power Windows provides a clean installation and reuses your stock bezels and nuts.

    The included bracket is designed to mount the motor under the dash to the lower lip beneath the original radio speaker location. Kit DOES NOT mount the motor in the stock location. The motor unit mounts under the dash and is connected to the wiper gearboxes via a Teleflex cable drive system. The wiper gearboxes mount in the stock cowl holes using the stock bezels and retainer nuts.

    911-23350 Instructions (PDF)

  • Basic Universal Wiper Drive Kit
    Basic Universal Wiper Drive Kit
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    This universal, dual wiper drive kit has two wiper shafts that are driven by a remote mounted, commercial duty, 2-speed wiper motor. The sweep is adjustable from 90°-160° in 10° increments. Wiper shafts accept arms (not included) that fit 1/2" fine spline knurls or arms that fit 1/4" shafts.

    This base kit has a standard 72" drive cable. Includes diagram to wire up to 1982-1989 Camaro/Firebird column switch. Does not include switch, wiring, arms or blades.

    Manufactured by Specialty Power Windows.

    911-23300 Instructions (PDF)

  • Specialty Power Windows WAB-01 Billet Aluminum Wiper Arm, Straight
    Specialty Power Windows WAB-01 Billet Aluminum Wiper Arm, Straight
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    These billet, aluminum wiper arms fit the common 1/2" knurled wiper pivot and are spring loaded. Includes a trim-to-fit 10" wiper blade. Straight. Ready to polish or paint. Installation allen wrenches included.

    • Maximum length of wiper arm/blade assembly is 14-1/2" (from the center of the 1/2" splined nut to the tip of the stock-length blade)
    • Blade holder is 9-3/4" long
    • Arm is approximately 10" long
  • Specialty Power Windows WAB-01BL Billet Aluminum Wiper Arm, LH Bend
    Specialty Power Windows WAB-01BL Billet Aluminum Wiper Arm, LH Bend
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    These billet aluminum wiper arms fit the common 1/2" knurled wiper pivot and are spring loaded.  Includes a trim-to-fit 10" wiper blade.  Left hand, oriented by sitting in the driver's seat.  Ready to polish or paint.  9-1/2" long.

  • Specialty Power Windows WWKXLWD-2I Deluxe Universal Dual Wiper Kit
    Specialty Power Windows WWKXLWD-2I Deluxe Universal Dual Wiper Kit
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    This universal, dual wiper drive kit has two wiper shafts that are driven by a remote mounted, commercial duty, 2-speed wiper motor. The sweep is adjustable from 90°-160° in 10° increments. Wiper shafts accept arms (not included) that fit 1/2" fine spline knurls or arms that fit 1/4" shafts.

    This complete drive kit with 144" long drive cable and 2-speed intermittent (knob) switch.

    Manufactured by Specialty Power Windows.

    Instruction Sheet