From BC Broncos website
TILT STEERING COLUMN
If you would like to have a tilt wheel in your early Bronco, here is a clean and easy way to get it.
Get the complete column (auto or stick) with wheel from a pre 1980 F-150. I like to use the 1978 or 1979. Remove the tubes that have the column support brackets spot welded to them. Drill out the spot welds and remove the support brackets from the F-150 and Bronco tubes. Place the F-150 tube in your Bronco.
For column shift automatics move the column up as far as possible without the shift linkage hitting the firewall bracket. You will loose about 1" of steering wheel height. With the stick column you can move it up to the stock Bronco height, if you would like.
Put the Bronco bracket removed earlier, in place on the F-150 column and bolt it down. Make sure that the column is not rotated and adjust the steering wheel height to suit. Mark the bracket location on the column. Remove the column and bracket. Fit the bracket on the column using the marks made earlier and weld. Reinstall the column. Cut a small notch in the steering column bezel to allow the turn signal wires to pass through. Connect the turn signal wires. On later models the socket will plug in to the stock Bronco wiring. If the plugs don't match up, connect the wires as follows:
CIRCUIT EB WIRING COLUMN WIRING
Left front turn signal Green/white Green/white
Left rear turn signal Yellow/black Yelow/black
Right front turn signal White/blue White/blue
Right rear turn signal ??/green Green
Backup light switch Red/black Red/black
Emergency flashers Black Blue