When i drive down the road referencing a clock 12 is straight…my wheel plays from 10 to 2 while going straight…i have to turn alittle in either direction before i feel resistance
have someone rotate the steering wheel, engine off, just to get the free play out of the wheel
look at all steering components and look for movement before parts are actually moving,
steering box, center arm, all 6 tie rod ends,
also look at suspension bushings
jack front axle up and grab the tire at 3 and 9 and check for play
technically your rig is a model year 79, even tho it has all the 78 components. all rigs between Sept and Dec are model year 79 but basically a 78 rig and will be registered as a 1979
generally Sept is the start of a new model year, the true 79's started in Jan 79 with all the changes,
it has happened thru the years of Landcruisers
early 1970 had non boosted single circuit brakes, later 1970 had boosted dual circuit brakes
early 1974 had a 3 speed trans, later 1974 had a 4 speed trans
there are just more changes between early 1979 and later 1979