Steering column is hitting the headers and melting the plastic

Check this thread.
67 steering column kit?

67 is one year only diameter.
Here’s a link.
67 MOPAR Steering Column Lower Bearing Collar and Spring W/o Tilt 100 USA for sale online | eBay

Edit: I just tried the link and appears they’re sold out but if you contact the seller from the eBay link I know he’ll be able to help you. He got one for me and was very appreciative of the business.