Brand New Borgeson Mopar Steering Coupler (Part #036425). This Borgeson steel steering coupler is a single universal joint with built-in vibration reducer purpose-made to join a stock Mopar steering column to Borgeson's Mopar power steering conversion boxes (Part #800126 & 800127). It is the finishing piece of a classic Mopar's conversion from manual or tired factory power steering to Borgeson's modern box. Cut and shorten the stock column per the instructions, slip the coupler over the shaft, then drill and pin it using the included bit and roll pins. Note: Will not adapt to a factory Mopar box Features: The box end is an 11/16"-36 spline matched to the Borgeson box input The column end is a 3/4" smooth bore The vibration reducer damps road and driveline buzz before it reaches the wheel while keeping steering response tight Permanent slop-free connection that retires the wear-prone factory pot-style coupler