Four listing for TDB
Truck 71 307 200hp manual L-14 2bbl C (2wd) 10,20,30 series
Truck 72 307 135hp manual L-14 2bbl K (4wd) 10,20 series
Truck 80 350 170hp manual LS-9 4bbl C 10 federal emissions
Truck 85 305 160hp manual LE-9 4bbl CK 10, 20, 30 Federal and Hi altitude emissions

I had an 85 K10 with the LE-9 motor.....what a dog. Replaced it with a
350 and it got better gas mileage and was much quicker