The answer to that would be no, 80 was the last year for 20r, 81 was the 1st year of the 22r.
Engines...
20r: 79-80
22r: 81-87
22re: 85-95
22rte: 85-87 (came out late 85 in some trucks and then 86-87 in both trucks and 4Runners)
Trans...
L43: 1979-1980 (4 Speed)
L45: 1981-1982 (4 Speed)
L50: 1981-1982 (5 Speed)
L52: 1983 (5 Speed)
G52: 1984-1987 (5 Speed)
G54: 1984-1987 (5 speed)
R151F: 1985-1987 (turbo pickups only)
The 85 turbo's were actually early 86 models released late 85
