What are you doing for your pulleys and accessories? If you plan to spend the money on a new Monte steering box, then get a new pump and hoses as well - don't flush 30 years of junk into your fresh 'box.. Use a power steering pump and hoses from the same years as the steering box. Don't forget that you need the Pitman arm from a 800 box if you switch to the Monte SS 'box. If you are lucky, your '78 has the 'box with the square top and four bolts. That's the 800 series, and the Pitman arm is already the right one. 1978 was the odd year for Malibus on wheel bearings and steering shafts. It was the last year for the splined steering column end, and 1979 was the first year for the 'D'-shaped end. If you will use an automatic transmission, consider swapping the column for a 1979+ tilt unit, then the Jeep shaft upgrade is a drop-in. IF you will go with a manual transmission, consider a manual tilt column from an S10, 1983-1994. It will have the key release lever.