GMC Workshop Service and Repair Manuals

(as required)

or equivalent

6.

Label (1985 4.3L Engine)       (1)           P/N 10066488

7.

PROM for 1986 4.3L               P/N 16068877 Federal engine

8.

PROM for 1986 4.3L               P/N 16068926 California engine

Parts are currently available from GMSPO.