Where the collapsible steering column retrofit becomes challenging is the top collar. The 68-69 collar has a larger diameter than the 65-67. If this doesnt matter to you, retain the 68-69 collar and install the column as is. If an original appearance is important, youre going to have to modify the 68-69 column to accept the 65-67 collar. The arrows indicate the difference in retaining-bolt positions as viewed by the driver.