I've seen all kinds of combos as far as color on the components between black and grey...And in 70 you could have either a solid or tube mast....Generally{for 70} grey is the dominant color...Even the early 70 tire irons I've had were grey...But never say never...First I'd check the date code on the jack mechanism and see what you've got....Here's a pic of an example of the date code for a solid mast.... 9F translates into 1969/June....This would be an early 70 e-body piece...Other units had the date code on the rivet so look around and see what you've got and go from there...