FixVault
Home
›
GMC
›
1988
›
Forward Control 7.4 W, Standard
›
Repair and Diagnosis
›
Engine Performance
›
Adjustment
›
Tune-Up - V8
›
Specifications
›
Spark Plugs
Spark Plugs
SPARK PLUG TYPE
Application
AC No.
5.0L & 5.7L TBI
R43TS
5.7L & 7.4L 4-Bbl.
R44T
7.4L TBI
CR43TS
SPARK PLUG SPECIFICATIONS
Application
Gap In. (mm)
Torque Ft. Lbs. (N.m)
Carbureted
.045 (1.14)
17-27 (23-37)
TBI
.035 (.89)
17-27 (23-37)