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Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch

Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch

Chevy Small Block V8, 1.375" Inside Diameter, 1.710" Compressed Length, 2.390" Extended Length

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Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
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Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
Chevy Hydraulic Throwout Bearing, GM Release Bearing Stock Clutch
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Part # 91025610
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  • Stock clutch hydraulic throwout bearing for most stock-style 3-speed and 4-speed Chevy clutches only
  • Install simply by replacing one bolt from the front of the transmission with one of the provided studs, then shim to fit
  • Bearing is made much smaller than the racing version so that it will fit behind the "thicker" stock style clutches
  • Redesigned new housing is much cleaner as it has no boss on the body
  • Design also has a retainer on it to prevent over extension and seal damage

Details

Throwout Bearing Style:
Hydraulic
Inside Diameter:
1.375"
Compressed Length:
1.710"
Extended Length:
2.390"
Outside Diameter:
2.875"
Travel:
0.680"
Outlet Fitting:
-4 AN
Notes:
Will not work with RAM couplers.
MFG. Part #:
91025610
Sold in Quantity:
Each

Info

  • 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, and air gap shims
  • Lower pedal effort compared to stock-type mechanical clutch linkage
  • Low-profile design fits behind aftermarket clutch pressure plates that are thicker
  • Easily upgraded to an external bleeder configuration
  • 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 3/8-inch anti-rotation studs to fit a wide variety of GM manual transmission applications.

Fits a Wide Variety of Popular GM Transmissions

This hydraulic bearing kit will fit most Chevrolet, BOP, and GMC manual 3- and 4-speed transmissions, such as the Muncie family of 4-speeds, Borg Warner T10 and Super T10 4-speeds, Saginaw 3- and 4-speeds, and even the GM-spec Tremec TKO-500 and 600 5-speeds when using a stock-style 10-1/2- or 11-inch diaphragm clutch. Essentially any GM transmission with a 1-3/8-inch OD bearing collar. The Speedway Motors hydraulic release bearing ships configured with -4 AN fluid line adapters and a standard 1/4-28 thread bleeder screw for in bellhousing bleeding. This can be upgraded easily to an external bleeder setup using Speedway Motors AN hose and fitting kit, PN 91025617. Most applications will work exceptionally well with a 3/4-inch bore master cylinder, such as Speedway Motors PN 91025680. See our bearing travel chart. 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!

Learn more about hydraulic release bearings and how to properly install them by reading our tech article. How to Install a Hydraulic Throwout Bearing.

Application

910-25610 Bearing typically used 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

WILL NOT work with:

  • Ram Coupler
  • Ford or Long-style pressure plates
  • May not work with racing style clutches because of limited extension on our hydraulic throw out bearings. The travel is 0.688" inches.

Notes

  • The fittings are -4 AN male for the "feed" and the "bleed" lines. Both fittings are tapped internally to accept the bleeder.
  • Bleeder threads are 1/4-28
  • To build your own external bleeder for this bearing, purchase (1) each of the following parts:

Charts

Installation Instructions (PDF)

Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

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Reviews

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Videos & Articles
  • Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.
  • One of the most challenging things about swapping transmissions can be figuring out the clutch linkage. Speedway can show you how to install the upgraded hydraulic throwout bearing with ease.
  • There are a few things to consider before you select a replacement flexplate for your small-block Chevy engine. Speedway has some useful tips to follow that will help speed up the process.

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