engineFront Main Sealfor 1990 GMC Sierra 1500 5.0L V8 305 TBI · 4WDLabor Hours6.6hrRange: 5.3–7.9 hrConfidenceestimatedAt $110/hr (independent shop)$726Estimated labor cost. Parts not included.Other labor times on this vehicle100K Service3.5 hr30K Service2.5 hr4WD Actuator2.4 hr60K Service3.5 hr90K Service3.5 hrABS Module1.8 hrABS Pump3 hrABS Wheel Speed Sensor - Front1.2 hrFront Main Seal on similar vehicles1997 Acura CL 2.2L I47.2 hr1997 Acura CL 3.0L V67.2 hr1998 Acura CL 2.2L I47.2 hr1998 Acura CL 3.0L V67.2 hr1999 Acura CL 2.2L I47.2 hr1999 Acura CL 3.0L V67.2 hr📝 Suggest a correction to this labor time