Technical Bulletins

When replacing the clutch, match the disc to the flywheel prior to installation. A mismatch can cause contact between the disc damper and the inside diameter of ...View complete bulletin

Excessive wear or misalignment at any of the release mechanism components will cause insufficient slave cylinder travel. Check the condition of the pivot, washer and seal attached ...View complete bulletin

Use of oversized lock washers on the clutch mounting bolts of these trucks with 12-inch clutches can cause release problems. The larger diameter of the washers can ...View complete bulletin

Release bearing/fork combinations differ among models, and the parts are not interchangeable. The wrong combination will result in chatter and hard pedal when the fork contacts the ...View complete bulletin

When installing a pull-type clutch with a release plate and wire ring, cycle the clutch prior to start up to ensure the circlip is fully seated under ...View complete bulletin

Insufficient lubrication between the fork and the ball stud may be misdiagnosed as a release bearing problem. Light pressure on the clutch pedal will silence the noise ...View complete bulletin

Vehicles with MTX transmission have a one-piece aluminum housing with integral bearing retainer prone to severe wear. The wear results in binding and misalignment of the release ...View complete bulletin

A 12-inch clutch upgrade is recommended for all non-turbos and vehicles equipped with aftermarket turbochargers. The upgrade is LuK RepSet #07-100, and it replaces the original 11-inch ...View complete bulletin

Excessive flywheel machining and installation of the wrong mounting bolts can damage the crankshaft position sensor. The sensor is mounted on the block directly behind the bolt ...View complete bulletin

Chatter at takeoff may be caused by extreme driveshaft angle between the transmission and the differential. Replace the driveshaft center support bearing plate with Ford part #F4TZ-4831-A ...View complete bulletin

The roll pins securing the release fork to the cross shaft can fatigue and break. This enables the fork to turn on the shaft. Replace the pins ...View complete bulletin

Premature clutch wear may be caused by insufficient clearance between the bell housing and slave cylinder. The slave mounting surface is located too far forward, restricting movement. ...View complete bulletin

Release problems have been caused by the disc binding on the input shaft. Ensure the disc moves freely on the input shaft and the splines are free ...View complete bulletin

In vehicles with hydraulic release systems, the release bearing is in constant contact with the clutch diaphragm fingers. A squealing noise on engagement can result when the ...View complete bulletin

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Slave cylinders located inside the bell housing require special handling to guarantee proper operation. ...View complete bulletin

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Referenced applications require special procedures to bleed the hydraulic system properly. The mounting position of the master cylinder on the firewall traps air in the rear portion ...View complete bulletinView video

Referenced vehicles were prone to no release, caused by a defective hydraulic release system. To eliminate leaks that may cause this condition, install an upgraded master cylinder, ...View complete bulletin

This solid flywheel option is designed to replace the original equipment dual-mass flywheel. The solid flywheel must be used with a clutch set designed for it. It ...View complete bulletin

Hard pedal and scraping noise while actuating the clutch pedal may be caused by failure of the clutch pedal return spring. Remove the return spring. It is ...View complete bulletin

Hard pedal/release problems may result from leaks in the internal seal of the slave cylinder. Replace the slave cylinder with one that contains an upgraded seal to ...View complete bulletin

The release bearing fork/combination on many General Motors applications makes it very easy to install the parts incorrectly with the leaf spring clip of the fork above ...View complete bulletin

Slipping or chattering conditions result from oil contamination of the disc friction material. The clutch push oil seal (VW part #020 311 108A) is often the source ...View complete bulletin

Chevrolet Corvettes manufactured from 1989 to 1996 were equipped with a dual-mass flywheel, which cannot be resurfaced and must be replaced. The driveline in these vehicles is ...View complete bulletin

The solid flywheel option is designed to replace the original-equipment dual-mass flywheel. The solid flywheel must be used for the clutch set designed for it. It cannot ...View complete bulletin

The cluthch set for the vehicles contains a clutch, disc and flywheel, engineered to install as a matched set. ...View complete bulletin

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the solid flywheel option is designed to replace the original-equipment dual-mass flywheel. The solid flywheel must be used with the clutch set designed for it. It cannot ...View complete bulletin

The slave cylinder for this application is manufactured without a bleed screw to purge air. If the slave cylinder has a gold allen screw, do not remove ...View complete bulletin

The clearance between the disc damper and the flywheel-to-crankshaft bolt heads on this application is minimal. When the original disc is removed, contact marks may be evident ...View complete bulletin

The release bearing and pre-lubricated internal slave cylinder are designed to operate without any additional lubrication. Do not lubricate these parts during installation. Doing so may cause ...View complete bulletin

The slave cylinder you remove from the vehicle will appear similar to the one of the two original-equipment designs shown. This procedure provides instruction for bearing installation ...View complete bulletin

The 13-inch flywheel upgrade is engineered specifically for Cummins-powered Dodge trucks. It features the same factory-installed flywheel design used in 2001 and newer models. Attention to detail, ...View complete bulletin

The self-adjusting clutches for some BMW applications include a shipping plate, which must not be removed prior to installation. ...View complete bulletin

These vehicles featured a sealed hydraulic release system and a concentric slave cylinder, which does not include a bleeder valve. Prior to disconnecting the slave cylinder, ...View complete bulletin

Referenced applications may exhibit signs of premature clutch wear or produce a clunk or rattle noise while the vehicle is in neutral and the clutch pedal is disengaged. The noise ...View complete bulletin

Referenced applications may produce a squeaking noise while the clutch pedal is actuated or released. The noise also may be detectable with the engine off while cycling the clutch pedal. ...View complete bulletin

Both LuK and Sachs manufactured complete clutch sets for the above-referenced applications. The sets include the clutch, disc and dual-mass flywheel. ...View complete bulletin