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Product Summary

Chevy Small Block V8, Chevy Big Block V8, 0.68" Travel

  • Complete hydraulic throwout bearing and hose kit for stock-style 3-speed and 4-speed Chevy clutches only
  • Includes a Speedway GM Stock Clutch Hydraulic Throwout Bearing, Bleeder Screw Assembly, 1/8" NPT adapter fitting, and AN4 Braided Stainless 12" Line
  • Bearing typically used with all OEM & OEM replacement clutches, Muncie 4-spds, Saginaw 3 & 4-spds, Borg-Warner 4-spds, Jerico 2 & 4-spds
  • Comes with detailed instructions for a painless installation
  • Will not work with Ram Couplers or mini clutches because of limited extension on our hydraulic throwout bearing, .688" travel

Comes as a Kit

Key Specs

MFG. Part #91605004
Throwout Bearing StyleHydraulic
Inside Diameter1.375"
Compressed Length1.710"
Extended Length2.390"

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Details

  • Simple installation upgrades your GM transmission to hydraulic clutch release
  • Built-in fail-safe retainer prevents over-extension of the hydraulic release bearing
  • Works with OEM-style diaphragm clutches for 3- and 4-speed GM transmissions
  • Works with aftermarket GM-spec Tremec TKO-500 and 600 5-speeds
  • Complete kit features hydraulic release bearing, anti-rotation studs, air gap shims, hydraulic line, and bleeder fitting with adapter
  • Lower pedal effort compared to stock-type mechanical clutch linkage
  • Low-profile design fits behind aftermarket clutch pressure plates that are thicker
  • 3/4-inch bore master cylinder recommended for most applications
  • Speedway Motors engineered product offers high quality at an incredible value

Hydraulic Clutch Actuation for your Classic Muscle Car, Hot Rod, or Race Car

For many enthusiasts, building a hot rod means it has to have three pedals and not two. A manual transmission is a MUST in their build. We certainly enjoy rowing through the gears ourselves and nothing makes that easier than a hydraulic clutch release bearing (or “throwout bearing” as some still call it). If you buy a new vehicle with a manual transmission today it will come with a hydraulic release bearing setup and that is for two primary reasons, pedal effort and packaging. These same two reasons are exactly why you should consider a Speedway Motors hydraulic release bearing kit for your manual transmission install. No longer do you have contemplate using bulky factory clutch release linkages that bind or take up valuable header and exhaust space and that require constant adjustment and maintenance, nor do you have to live with a heavy clutch pedal that has you reconsidering driving your pride and joy in any traffic. Using a hydraulic release bearing solves all these issues yet is easy to setup when installing your transmission.

Everything You Need in an Easy to Install Kit

Speedway Motors’ hydraulic release bearing kit provides everything you need to ditch your stock, tired mechanical linkage and go hydraulic at a great value. The kit features a new and improved release bearing designed by Speedway Motors’ Engineering Team with a CNC-machined housing, extended fluid line fittings, and a built-in fail-safe retainer. There is simply no way to over-extend this release bearing with this retainer design. Typically over-extending the release bearing means pulling the transmission and reassembling the separated bearing (not to mention cleaning up all that hydraulic fluid in the bellhousing!). Also included are a sufficient number of release bearing shims to correctly set your air gap between the bearing face and clutch, as well as both 5/16- and ?-inch anti-rotation studs to fit a wide variety of GM manual transmission applications. This kit also features our braided bleeder line with adapter for outside the bellhousing clutch bleeding.

Fits a Wide Variety of Popular GM Transmissions

This hydraulic bearing kit will fit most Chevrolet, BOP, and GMC manual three- and four-speed transmissions, such as the Muncie family of four-speeds, Borg Warner T10 and Super T10 four-speeds, Saginaw three- and four-speeds, and even the GM-spec Tremec TKO-500 and 600 five-speeds when using a stock-style 10½- or 11-inch diaphragm clutch. Essentially any GM transmission with a 1?-inch OD bearing collar. The Speedway Motors hydraulic release bearing ships setup with AN -4 fluid line adapters along with a 12-inch bleeder line and a standard ¼-28 thread bleeder screw for easy external bleeding. Most applications will work exceptionally well with a ¾-inch bore master cylinder, such as Speedway Motors PN 91025680. Your hot rod may be a vintage time piece, but that does not mean your drivetrain has to be as well. Step into the 21st century with a Speedway Motors hydraulic clutch release bearing kit and your left calf muscle will thank you!

 Kit Includes:

  • (1) Speedway GM Stock Clutch Hydraulic Throwout Bearing
  • (1) Wilwood Bleeder Screw Assembly
  • (1) Speedway Gauge Fitting, Straight AN4 Male, 1/8 Inch NPT Female
  • (1) Speedway Braided Stainless 12 Inch Brake Line

Speedway GM Stock Clutch Hydraulic Throwout Bearing

Works with all OEM and OEM replacement 10-1/2- and 11-inch diaphragm clutches; Jerico 2-speeds; Saginaw 3-speeds; Muncie M20, M21, and M22 "Rock Crusher" 4-speeds; Muncie SM420 and SM465 truck 4-speeds; Saginaw 4-speeds; Borg-Warner T10 and Super T10 4-speeds; Jerico 4-speeds; GM-spec Tremec TKO-500 and TKO-600 5-speeds

  • Compressed Length: 1.71"
  • Extended Length: 2.39"
  • Inside Diameter: 1.375"
  • Outside Diameter: 2.875"
  • Outlet Fitting: -4 AN
  • Travel: .68"
  • Notes: Will not work with RAM couplers, Ford or Long-style pressure plates, and may not work with racing style clutches because of limited extension on our hydraulic throw out bearings

Wilwood Bleeder Screw Assembly

This bleeder is designed with an 1/8-inch NPT thread and is used with the below fitting and braided line to create an external clutch bleeder

  • Fitting End A: 1/8" NPT
  • Material Type: Brass
  • Finish: Natural

Speedway Gauge Fitting, Straight AN4 Male, 1/8 Inch NPT Female

We include this female 1/8-inch NPT to AN4 straight fitting to connect the bleeder screw to the braided fluid line

  • AN Size: -4 AN
  • Angle: Straight
  • Fitting End A: -4 AN Male
  • Fitting End B: 1/8" NPT Female

Speedway Braided Stainless 12 Inch Brake Line

Braided stainless covering over a Teflon inner liner. These are perfect for brake lines, clutch lines and gauge lines. These have straight AN4 fittings on both ends.

  • Brake Hose Size: -4 AN
  • Brake Hose Length: 12"
  • Brake Hose Fitting Size: -4 AN Female
  • Brake Hose Fitting Angle: Straight
  • Brake Hose Material: Teflon | Stainless Braid
  • Overall Length: 12"
  • Fitting End A: -4 AN Female
  • Fitting End B: -4 AN Female

Charts

Specifications

KEY SPECS
MFG. Part #91605004
BrandSpeedway Motors
Throwout Bearing StyleHydraulic
Inside Diameter1.375"
Compressed Length1.710"
Extended Length2.390"
GENERAL
Outside Diameter2.875"
Travel0.68"
Inlet Fitting-4 AN
Outlet Fitting-4 AN
Hardware IncludedYes
Sold in QuantityKit