![]() ![]() You may be able to use the Sonnax Enhanced Performance Accumulator Spring #77704S with the Sonnax Pinless 1-2 Accumulator, but I am not certain. Free Shipping Share with your friends Overview. Estimated Ship Date: Today Would you rather pick it up Select Location. If you do go back to a pin type 1-2 accumulator, Sonnax sells a nice Billet one #74927-AP TransGo Automatic Transmission Shift Kits 4L60E-PRO TRG-4L60E-PRO. I have heard you can use the HD2 kit spring for the 3-4 accumulator with the Sonnax Pinless, but I have not tried it. The GM OEM Piston with the HD2 kit springs will give you a more firm shift. I use new GM OEM Aluminum 1-2 and 3-4 accumulator Pistons from an early 2000's 4l60e, because the newer 4L60E 1-2 and Forward accumulator pistons are plastic, and will crack and leak. Some kits even include a step-by-step video to walk you through the installation process. At high RPM, the check ball in the input drum will not seat due to. High-revving engines often have complaints of burnt 3-4 clutch plates with no visible signs of why the clutches failed. Their performance shift kits can be installed with the transmission in the vehicle and they come with complete instructions. This 7-CS clutch spring kit fits 1982 to 2015 General Motors vehicles equipped with the 700R4/4L60, 4L60E, 4L65E and 4L70E automatic transmission. You can use the Sonnax Pinless Forward Accumulator Piston with the HD2 kit, which is what I use. TransGo even has kits for computer-controlled, 4-speed automatics. ![]() Use the drill to enlarge the feed passage in the overrun clutch housing as well. You will need to use the stock Piston to use the HD2 Springs, or keep the current springs that are in there now. Be sure to drill at a 45 degree angle to maximize oil flow. It will be a nice firm shift tho, nothing neck breaking.Īlso, the springs for the 1-2 accumulator in the HD2 kit will Not work with the Sonnax Pinless 1-2 Accumulator. I run that currently, along with the Sonnax Billet 4th Servo, and a bunch of other Sonnax stuff. 1998 up: If vehicle has Torque Management this kit will not make hard shifts. Backshifts to 3rd, 2nd & 1st by moving the lever. The vette servo plus HD2 kit wont make it shift to hard unless you modify the settings to much. 4L60E-HD2 Features: 4L60E 1993-On Reprogramming Kit with Gear Command. ![]()
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