4L60E 4L65E 700R4 Transmission The real BEAST Sunshell Sun gear reaction
4L60E 4L65E 700R4 The Beast Sun Gear Shell Extreme duty upgrade for the 700R4 4L60E 4L65E transmissionFits all units 1982-up The original equipment sun gear shell is notoriously weak in the splined area.Especially with 1996-on units, the originals are even less hardened!Pre-’96, GM engines were TBI and idled at higher RPM after cold start and needed more hardnessto survive stripping (at least through the factory warranty period). The Patented “Beast” is incredibly strong in comparison. The splined area is considerably thicker,and also reinforced by a large chamfered area to help resist twisting common with the thin stock type.Please see comparison pic in the gallery! US Patent No. 6,561,944 View more great items
4L60/4L60E/4L70 Sunshell heavy duty, hardened, standard thickness
Experience the durability and precision of the GFX 4L60/4L60E/4L70 Sunshell, designed to enhance your transmission’s performance. This heavy-duty, hardened component is manufactured to standard thickness, ensuring a perfect fit for your 700/ 4L60E, and all other compatible transmission types. The part, identified by interchange number 77749, is crafted in China with a focus on robustness and reliability, making it an ideal choice for those seeking a performance part that delivers long-lasting results. GFX’s commitment to quality is evident in every aspect of this hard part, from its impeccable craftsmanship to its attention to detail. This product is not a modified item, nor is it part of a custom bundle, ensuring that you receive a consistently high-quality component that meets your vehicle’s specifications. Upgrade your transmission system with this top-notch sunshell and enjoy the peace of mind that comes with a well-built, performance-oriented part.