I think I need to remove the top portion of the steering shaft, but will take off that cover first for inspection. I'm not clear on whether I need to take the grill off for the air inlet, and also remove the blower motor or not.

Most info I've found is for later cars too.

Thanks for any instructions, answers, tips, etc.

The car is a 1973.5 - I stupidly did not realize my registration name would only be good for 1 year...