Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededCO2 Shifter Conversion Converting from AS1 to AS4
Ships on Sep 07, 2026
Lowest Price Guarantee- CO2 Shifter Conversion
- Converting from AS1 to AS4
Used when changing from a forward pattern 3 speed to a reverse pattern 3 speed, Model AS1C contains the needed bracket and hardware to convert your existing Dedenbear AS4 forward pattern CO2 shifter to an AS1 reverse pattern CO2 shifter. Turbo Action reverse pattern shift gates are also available for GM, Ford and Chrysler applications.
2 Speed Forward Pattern for B&M/Hurst Shifters
These CO2 shifters make the low to high gearshift automatically at any preset rpm. Large oversize cylinders and high flow solenoid valves insure the fastest most positive shifting units on the market. No modifications required. Just bolt this pre-assembled unit to the back of the shifter, plumb the air line, and attach two wires. All parts are plated for corrosion resistance and professional appearance. CO2 shifter kits are available with or without air bottle kits.
Show More
3 Speed Reverse Pattern for Turbo Action Cheetah Shifters
Dedenbear's 3 speed CO2 shifter makes both shifts automatically at any preset rpm. By installing the largest solenoid ever fitted to a shifter, Dedenbear has created the fastest shifting 3 speed unit on the market. Engineered to work with all 3 speed GM, Ford and Chrysler reverse pattern automatic transmissions. No modifications required. Just bolt this pre-assembled unit to the back of a Turbo Action Cheetah shifter, plumb the air line, and attach two wires. All parts are plated for corrosion resistance and professional appearance.
2 & 3 Speed Forward Pattern for Turbo Action Cheetah Shifters
Dedenbear's AS4 CO2 shifter makes the low to high gearshift on 2 speed powerglides and the 1-2 and 2-3 gear shifts on forward pattern 3 speeds automatically at any preset rpm. This unit bolts on in just a few minutes, using basic hand tools. As in Dedenbears other CO2 shifters, they use large oversize cylinders and high flow valves to insure the fastest, most positive shifting unit on the market. No major modifications or drilling of the Cheetah shifter is required. All parts are either billet steel or stamped out of steel plate and plated for a long lasting durable finish. This kit contains all necessary parts, including a neutral start switch and bracket. All you need to do is bolt it on and wire it up. AS4K includes the complete air bottle kit with 10 oz CO2 bottle, valve, dual gauge adjustable regulator and RPM2 switch.
NOTE: AS4 does not work with Chrysler forward pattern 3 speed shifters.
