SUNCOAST 4L60E CAT4 2003-2006 RAY/BORG 3/4 4WD SC-4L60E-CAT4-0306-4WD CORE CHARGE OF 1200 APPLIES

This Category 4 SunCoast 4L60/65/70E kit has everything you need for a successful high performance rebuild. This kit was designed for customers looking for a complete solution to their 4L60/65/70E transmission issues. Aside from all-new electronics, these kits include the same recipe we build with at SunCoast daily. The 4L60/65/70E is a series of automatic transmissions from General Motors. Designed for longitudinal engine configurations, the series includes 4 forward gears and 1 reverse gear. The 4L60E is the electronically commanded evolution of the Turbo-Hydromatic 700R4, originally produced in 1982. Most of the 4L60/65/70Es you see in service today were originally manufactured in the Toledo, Ohio, plant for General Motors. These transmissions cannot be differentiated from the outside by the average eye. The 4L65E shares the same exterior parts but has stronger internals, such as 5 pinion planets compared to 4 in the 4L60E. These also can carry several different input shafts depending on which version you have. The early 4L60Es had a 298mm input shaft for non-LS platforms while the later LS models utilized a 300mm one. The later 4L70E also utilized an input speed signal on the input shaft. An updated 4L60E, the 4L65E (RPO M32), was phased in the 2001 model year when coupled behind the 6.0 Vortec. Five-pinion front and rear planetaries, along with an additional 3-4 clutches, allowing 7 clutches in the input housing and induction-hardened input shaft assembly, were improved to withstand up to 380 ft-lbs (515 N-m) of torque.