you have just summed up the wonders of INFLATION. The official G'ment stats were changed sometime in the 1980's (?). this was done to slow down the payout to people who are using the Social Security Ponzi scheame.
In 1985, a decked-out GMC C-1500 4X4 was $9,625.
The average wage was $16,822.51 per year.
I really wanted that truck back then. Couldn’t afford it.
I never put it together, you are probably right.