This 4L60E steel module has been engineered for high performance by Raybestos Powertrain.  Raybestos Powertrain GM 4L60E Kolene steel clutch plates are high quality engineered high performance products.  Kolene is a salt bath nitriding process.  In generic terms, it is thermochemical diffusion process, whereby ferrous parts are processsed in molten salt with a specific nitrogen potential.  In other words, Raybestos 4L60E Kolene steels provide a surface treatment that enhances wear and fatigue resistance from 200% to 500%.  

Advantages of Raybestos Powertrain's 4L60E Kolene Steel Module

• Enhances wear resistance 200% to 500%
• Enhances fatigue resistance 200% to 500%
• Higher heat resistance
• Increased lubricity
• Surface treated
• Engineered for high performance
• Superior clutch durabliity

When you pair this high performance steel moduel with a high energy 4L60E friction module, you are putting the highest quality parts available at one of the lowest costs found online.  

Listing of Frictions in the Raybestos High-Energy Friction/Clutch Pack

• (5) Forward Clutches with Grooves (OEM # 24232517)
• (2) Overrun Clutches (OEM # 8673253)
• (5) Low – Reverse Clutches (OEM # 24216946)
• (4) Reverse Input Clutches (OEM # 8663080)

3-4 Z-Pak™ Clutch System

7 Steps to Ultimate Clutch Performance

1. Use a 1988 or later input drum, identified by narrow snap ring groove and a 0.093'' 3-4 snap ring.
2. Used only a 3-4 apply ring measuring 3.675'' +/- 0.005'' inches tall, commonly referenced as a Number 7 apply ring.  This stamped steel ring rests on top of the 3-4 piston.  The number '7' is stamped into the part for identification.  The OEM number is 8685043.
3. Pre-soak all friction plates in automatic transmission fluid (ATF) prior to final assembly.
4. First, install the special grooved apply plate (bottom) with the groove facing upward.  Do not attempt to install the narrow external spline friction plate, with "TOP" printed on it, into the machined groove.  Set it aside until Step 6.
5. Install the friction plates, beginning with an external spline friction plate with friction material facing upward (away from the special grooved apply plate), then an internal spline friction plate with friction material facing upward, continue alternating until you  have installed seven external spline friction plates and seven internal spline friction plates.
6. Important! Install the special external spline friction plate, identified by the narrow band of friction material, with the word "TOP" facing up.  This eternal spline plate does not look like any of the others.  It is critical to install this plate last.  Using it anywhere else in the pack will damage the clutch pack and void the warranty. NOTE:  Use of load release springs is optional.  Use of load release springs recommend for RPM above 5000.
7. Finally, install the .145'' pressure plate provided, followed by the factory snap ring.  Clearance should be within the 0.050''-0.07'' range.  If not, install optional external spline shim to adjust clearance to 0.050''-0.070'' if necessary.  It is recommenced to check actual piston travel by placing a dial indicator on the backing plate and apply air to the third clutch feed.  If clearance is measured with feeler gauges, it is important to measure in two places at the same time, 180 degrees apart, for even loading of the pressure plate.  Failure to do so may cause incorrect end play reading.

2-4 Band, Raybestos, Pro Series High Energy, 700R4/4L6OE/4L65E (1987-Up)

With a Pro Series High Energy 2-4 Band for a 700R4/4L60E/4L65E made by Raybestos, you know you have nothing to worry about.  The High Energy friction coating has been proven to wear less and last longer than the OEM 2-4 band.  This means you can rest easy knowing that inferior parts aren't going to cut your rebuilt transmissions life short.  The Pro Series 2-4 Band paired with a Corvette Servo Assembly (by OMS, LLC, item # 1091), makes for a high performance combination that will speed your shifts up dramatically!

Features

• Greater mechanical strength
• Higher co-efficient of friction competitors' high-energy bands
• Heat-treated anchors for added strength on specific applications
• Made in the U.S.A.

Benefits

• Resistance to extreme heat (up to 700º F)
• A significant increase in durability
• Higher holding capacity
• Stable when exposed to high-energy conditionas
• Affordable performance for every rebuild
• Reduced risk of overheating steel plates