Simplify connecting your column shift to your transmission with a Cable Column Shift Linkage Kit. It can also be used in conjunction with the Back-Up Light or Neutral Safety Switch Kit # 491-1400 for most GM transmissions. If you have a direct line of sight from column shift arm to transmission shift arm, we suggest using the adjustable column shift linkage # 491-1800. To determine column diameter, measure the lower outer column tube Works with 2" aftermarket GM style columns and most GM factory columns. Works with all GM transmissions Note:It does not work with a Powerglide, 4L60E, 4L70E and newer transmission 2 Inch Cable Column Shift Linkage for Aftermarket GM.Simplify connecting your column shift to your transmission with a Cable Column Shift Linkage Kit. Note: Works with 2" aftermarket GM style columns and most GM factory columns. Works with all GM transmissions however it does not work with a Powerglide, 4L60E, 4L70E and newer transmission