Dual Comp Clutch Kit
All of LC Engineering's clutch kits feature all new components with a single diaphragm H.D. pressure plate. Don't be fooled by fancy spinning gizmos. A diaphragm clutch delivers full holding power at all engine rpm's. Our Pro Clutch Kit features a heavy-duty pressure plate combined with LC Engineering's custom disc with small particles of brass impregnated into it to provide tremendous heat resistance, holding power and smooth operation. The Pro Clutch Kit has over twice the holding power of a stock clutch with only a slightly stiffer pedal - excellent for use in 4WD with 31" or larger tires, or for vehicles with slight-to-moderate performance upgrades. Clutch kits come with the pressure plate, clutch disk, pilot bearing, throw out bearing, and a new alignment tool.
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LCE PRO CLUTCH KIT
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Pressure Plate
Clamping Force
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Torque Limit Ft. Lbs.
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Horsepower Limit
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LCE PRO 2500 Lbs.
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385 Ft. Lbs.
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385 HP
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NOTE: Fitment is for trucks produced in North America only.
The 1gr 6 Speed Transmission Does not use a Pilot Bearing. Not compatible with TDI conversions.
This product should not be used in a manner that violates Federal EPA Laws.
Contact our Tech Support Line for further information at 928-855-6341.
Check out LCEngineering.com for New Products, Tech Articles, Specials & Monthly Newsletters!
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Note: Images are for illustration purposes only. Images may not represent the product listed. Please contact customer service with any questions or concerns: 1-928-505-2501.
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2005-2015 1GR 4.0L Engines
To open a printable PDF version of this instruction
CLICK HERE
Installation:
1. Always disconnect the negative battery cable prior to doing any major work on your vehicle.
2. When removing your old clutch, note which way the clutch disc was facing (spring pack facing engine or transmission). You will want to install the new disc with the same orientation as the old disc you removed.
3. Before installing your new clutch clean the inner bellhousing area to make sure no debris gets onto the new clutch. Also inspect clutch bar for any damage (cracks, excessive wear etc...).
4. Remove flywheel and either resurface or replace. The flywheel must have a fresh surface for the clutch disc to mate to! Failure to resurface the flywheel can result in shorter clutch life and abnormal wear or vibration. If the flywheel is discolored from excessive heat, you may need to replace it.
5. Install flywheel using a small amount of Loctite on the flywheel bolts. Torque the bolts in a star pattern. See the chart below for proper torque specs. 2RZ/3RZ flywheel bolts can not be re-used! These are a torque-to-yield bolt that are only intended to be torqued down once. New flywheel bolts are available from LC Engineering.
6. Install new pilot bearing in crankshaft. Failure to replace pilot bearing can result in annoying squeal noises when cold. We supply a new pilot bearing in all of our clutch kits.
7. Place clutch disc on flywheel, using the supplied alignment tool to make installation of the transmission easier. For all 20R, 22R, 22RE, 22RET, 2RZ, and 3RZ clutches, the spring side of the clutch disk faces the pressure plate/transmission. For 5VZ V6 clutches, the spring side faces the flywheel. If there is any confusion refer back to which way the stock disc was facing.
8. Install pressure plate onto flywheel, making sure to align the dowel pins in the flywheel with the corresponding holes in the pressure plate. Verify that the alignment tool keeps the clutch disk centered in the assembly (do not let the tool just hang on its own, you need to keep it centered as you install the pressure plate. Torque bolts evenly a little at a time in a star pattern. If the pressure plate is not torqued evenly in steps it can cause the plate to warp, this will not be covered under warranty. LC Engineering recommends tightening the pressure plate with hand tools only. Refer to chart below for torque specs. Remove alignment tool.
9. Replace throw-out bearing. The throw-out bearing is held in with two retaining clips that hold it to the clutch fork.
10. Lubricate all moving parts; input shaft, pressure plate “finger” tips, throw out bearing contact surfaces etc... with white lithium grease or Anti-sieze. This will ensure smooth performance and engagement of the clutch
11. With the new throw out bearing in place, slide the transmission onto the engine, being extremely careful not to let the weight of the transmission hang on the clutch disk. This can cause serious damage to the disk. With the clutch disk properly aligned during installation, the input shaft should not require any force to install. Rocking the transmission or turning the output shaft as you install the tranny may help if it doesn’t go in all the way. DO NOT USE THE BELLHOUSING BOLTS TO DRAW THE TRANSMISSION AND ENGINE TOGETHER! This can result in serious damage, especially to the new clutch or the thrust bearings inside the engine, and should not be necessary if everything is installed and aligned properly.
12. Re-install slave cylinder and other components you may have removed to gain access to the clutch.
13. If needed, bleed clutch hydraulic system according to repair manual.
14. Road test vehicle, avoiding aggressive driving for the first 500-750 miles. Proper break-in procedure is crucial to long service life out of your new clutch.
NOTE: FAILURE TO FOLLOW PROPER INSTALLATION OR BREAK-IN PROCEDURES WILL VOID ANY WARRANTY
 
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Clutch kits 
