Component Specifications. Chevrolet S10 Pickup - 4WD 1998

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 1998 🢒 S10 Pickup - 4WD 🢒 General Information 🢒 General Information 🢒 Component Specifications

Component Specifications General Specifications

System RPO Code	Caliper Housing Bore Diameter	Rotor
System RPO Code	Caliper Housing Bore Diameter	Diameter (nominal)	Rotor (On-Vehicle) Lateral Runout	Front Hub /Rear Axle Shaft Flange Lateral Runout
Front Wheel
JM3	--	267 mm (10.5 in)	0.08 mm (0.003 in)	--
JC1	--	274 mm (10.8 in)	0.08 mm (0.003 in)	--
Rear Wheel
JC1	48 mm (1.88 in)	295 mm (11.614 in)	0.10 mm (0.004 in)	0.05 mm (0.002 in)

Component Specifications Rotor Thickness

System RPO Code	Original	Thickness Variation	Minimum Thickness After Refinishing	Discard
Front Wheel
JM3	26.2 mm (1.03 in)	0.010 mm (0.0003 in)	24.89 mm (0.980 in)	24.51 mm (0.965 in)
JC1	29 mm (1.14 in)	0.010 mm (0.0003 in)	28.0 mm (1.10 in)	27.5 mm (1.08 in)
* All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing the rotor, replace any rotor that does not meet the minimum thickness specification.
Rear Wheel
JC1	20.00 mm (0.787 in)	0.013 mm (0.0005 in)	19.00 mm (0.748 in)	18.50 mm (0.728 in)
* All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing the rotor, replace any rotor that does not meet the minimum thickness specification.