EXEDY has improved their already durable clutch with 3-4 friction plates for the 4L60/E family by incorporating micro-waves in the design. This design has undergone 22 months of extensive durability testing and is now available via Marken Performance. Micro-wave technology is used in current vehicles to help fuel mileage by considerably reducing parasitic drag in unapplied clutch packs. Using this methodology, micro-waves applied to the 3-4 clutch dramatically reduces heat generated in 1st and 2nd gear by keeping the plates cooled and separated prior to apply.
The 4L60/E family has long been haunted by premature 3-4 clutch burn-up; a decades-long problem where builders are seeking longevity. Over the years there have been various attempts to address this: from the changing the friction material and steel plate thicknesses, to the aftermarket trying extra thinner plates and single-sided plates but none of these addressed the root cause until now.