22R in a 1979?Mine had the 2.4l 22R 4 cyl.
https://jalopnik.com/the-most-reliable-motor-vehicle-i-know-of-1988-toyota-5166290
https://itstillruns.com/history-22r-22re-toyota-motor-8685875.html
Toyota pickups around here command high price tags till the become crusty unsafe heaps.