Features: 1.Applicable Model: Pinless accumulator piston kit fits for 4L60E 4L65E 4L70E Transmission. Please confirm whether your model is applicable before buying. 2.Package Contents: This set includes 3pcs pinless forward accumulators (FWD 1?2 and 3?4), 6pcs sealing rings and 6pcs steel balls. 3.Professional Design: Pinless design eliminates the possibility of pin leakage and the extra length stabilizes the piston and prevents it from cocking. 4.With Seal and Steel Ball: Double seals stabilize and completely seal the bore, providing a tight seal even after thousands of cycles. With steel balls for plugging existing pin bore in valve body. 5.Metal Construction: Transmission accumulators are constructed of high strength metal material, rugged structure, not easy to deform and rust. Specification: Item Type: Pinless Forward Accumulator Piston Kit_x000D_ Material: Metal_x000D_ Fitment: Fit for 4L60E 4L65E 4L70E Transmission