These are a 28 column measured from end of the D-D coupler to the end of the column itself (minus the steering wheel adapter). Columns use a horn wire system and have a standard 4 1/4 male wiring harness, which was common in most GM columns'69 GM applications. Pre-Wired with a GM OEM-Type Plug. Other sellers use plastic material for the lock, the shift gear will break off and lock locking gear that can render it unsafe. Please note our column is GM style universal may not be directly fit.
Correct size u-joint, column Mount/drop may require. Steering column is GM style universa.