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2020 GMC Sierra 1500
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Price Match Guarantee
60-Day Returns
Lifetime Replacement
2020 GMC Sierra 1500

2020 GMC Sierra 1500 Pinion Seals

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Pinion Seal - Direct Fit
AC Delco®
Pinion Seal - Direct Fit
Part Number: AC23243853
Guaranteed to Fit
$21.99
Vehicle Fitment
  • 2020 GMC Sierra 1500 SLT All Engines 4WD, 3.23R(GU5), 3.42R(GU6), Front Axle - Supplier B(SU5)
  • 2020 GMC Sierra 1500 Elevation All Engines 4WD, 3.23R(GU5), 3.42R(GU6), Front Axle - Supplier B(SU5)
  • 2020 GMC Sierra 1500 Denali All Engines 4WD, 3.23R(GU5), 3.42R(GU6), Front Axle - Supplier B(SU5)
  • 2020 GMC Sierra 1500 AT4 All Engines 4WD, 3.23R(GU5), 3.42R(GU6), Front Axle - Supplier B(SU5)
  • 2020 GMC Sierra 1500 SLE All Engines 4WD, 3.23R(GU5), 3.42R(GU6), Front Axle - Supplier B(SU5)
  • 2020 GMC Sierra 1500 Base All Engines 4WD, 3.23R(GU5), 3.42R(GU6), Front Axle - Supplier B(SU5)
Product Details
Location : FrontWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE ReplacementProduct Fit : Direct Fit
Pinion Seal - Direct Fit
AC Delco®
Pinion Seal - Direct Fit
Part Number: AC23243585
Guaranteed to Fit
$31.49
Vehicle Fitment
  • 2020 GMC Sierra 1500 Elevation 8 Cyl 5.3L enginedesignationname: L84, Eng. VIN: D, 4-Door, Crew Cab Pickup, 157.0 in. Wheelbase, 3.23R(GU5), POSITRACTION L/SLIP R/AXL(G80), REAR AXLE - SUPPLIER B(SU8)
  • 2020 GMC Sierra 1500 SLT 8 Cyl 5.3L enginedesignationname: L84, Eng. VIN: D, 4-Door, Extended Cab Pickup, 147.4 in. Wheelbase, 3.23R(GU5), POSITRACTION L/SLIP R/AXL(G80), REAR AXLE - SUPPLIER B(SU8)
  • 2020 GMC Sierra 1500 SLE 4 Cyl 2.7L enginedesignationname: L3B, Eng. VIN: K, 4-Door, Extended Cab Pickup, 147.4 in. Wheelbase, 3.42R(GU6), POSITRACTION L/SLIP R/AXL(G80), REAR AXLE - SUPPLIER B(SU8); Exc. ENHANCED TOWING PERF PKG(NHT)
  • 2020 GMC Sierra 1500 Base 8 Cyl 5.3L enginedesignationname: L82, Eng. VIN: F, 4-Door, Extended Cab Pickup, 147.4 in. Wheelbase, 3.42R(GU6), POSITRACTION L/SLIP R/AXL(G80), REAR AXLE - SUPPLIER B(SU8); Exc. ENHANCED TOWING PERF PKG(NHT)
  • 2020 GMC Sierra 1500 AT4 8 Cyl 5.3L enginedesignationname: L84, Eng. VIN: D, 4-Door, Crew Cab Pickup, 147.4 in. Wheelbase, 3.23R(GU5), POSITRACTION L/SLIP R/AXL(G80), REAR AXLE - SUPPLIER B(SU8)
  • 2020 GMC Sierra 1500 Elevation 4 Cyl 2.7L enginedesignationname: L3B, Eng. VIN: K, 4-Door, Crew Cab Pickup, 147.4 in. Wheelbase, 3.42R(GU6), POSITRACTION L/SLIP R/AXL(G80), REAR AXLE - SUPPLIER B(SU8); Exc. ENHANCED TOWING PERF PKG(NHT)
  • 2020 GMC Sierra 1500 SLE 8 Cyl 5.3L enginedesignationname: L84, Eng. VIN: D, 4-Door, Crew Cab Pickup, 147.4 in. Wheelbase, 3.23R(GU5), POSITRACTION L/SLIP R/AXL(G80), REAR AXLE - SUPPLIER B(SU8)
  • 2020 GMC Sierra 1500 Base 4 Cyl 2.7L enginedesignationname: L3B, Eng. VIN: K, 4-Door, Crew Cab Pickup, 147.4 in. Wheelbase, 3.42R(GU6), POSITRACTION L/SLIP R/AXL(G80), REAR AXLE - SUPPLIER B(SU8); Exc. ENHANCED TOWING PERF PKG(NHT)
  • 2020 GMC Sierra 1500 Denali 8 Cyl 5.3L enginedesignationname: L84, Eng. VIN: D, 4-Door, Crew Cab Pickup, 147.4 in. Wheelbase, 3.23R(GU5), POSITRACTION L/SLIP R/AXL(G80), REAR AXLE - SUPPLIER B(SU8)
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE ReplacementProduct Fit : Direct Fit
Pinion Seal
AC Delco®
Pinion Seal
Part Number: AC84428304
Guaranteed to Fit
$35.99
Vehicle Fitment
  • 2020 GMC Sierra 1500 SLT All Engines 4-Door, Extended Cab Pickup, 4WD, 147.4 in. Wheelbase, 3.23R(GU5), 3.42R(GU6), 3.73R(GT4), Front Axle - Supplier A(SU4)
  • 2020 GMC Sierra 1500 Elevation All Engines 4-Door, Extended Cab Pickup, 4WD, 147.4 in. Wheelbase, 3.23R(GU5), 3.42R(GU6), 3.73R(GT4), Front Axle - Supplier A(SU4)
  • 2020 GMC Sierra 1500 Denali All Engines 4-Door, Crew Cab Pickup, 4WD, 157.0 in. Wheelbase, 3.23R(GU5), 3.42R(GU6), 3.73R(GT4), FRONT AXLE - SUPPLIER A(SU4)
  • 2020 GMC Sierra 1500 AT4 All Engines 4-Door, Extended Cab Pickup, 4WD, 147.4 in. Wheelbase, 3.23R(GU5), 3.42R(GU6), 3.73R(GT4), Front Axle - Supplier A(SU4)
  • 2020 GMC Sierra 1500 SLE All Engines 4-Door, Crew Cab Pickup, 4WD, 157.0 in. Wheelbase, 3.23R(GU5), 3.42R(GU6), 3.73R(GT4), FRONT AXLE - SUPPLIER A(SU4)
  • 2020 GMC Sierra 1500 Base All Engines 4-Door, Crew Cab Pickup, 4WD, 147.4 in. Wheelbase, 3.23R(GU5), 3.42R(GU6), 3.73R(GT4), FRONT AXLE - SUPPLIER A(SU4)
Product Details
Location : FrontWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Pinion Seal - Direct Fit
AC Delco®
Pinion Seal - Direct Fit
Part Number: AC710506
Guaranteed to Fit
$16.99
Vehicle Fitment
  • 2020 GMC Sierra 1500 All Submodels All Engines
Product Details
Location : RearWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE ReplacementProduct Fit : Direct Fit
Pinion Seal
AC Delco®
Pinion Seal
Part Number: AC710536
Guaranteed to Fit
$20.99
Vehicle Fitment
  • 2020 GMC Sierra 1500 All Submodels All Engines
Product Details
Location : FrontWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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Helpful Automotive Resources

Bad Pinion Seal Symptoms
Bad Pinion Seal SymptomsThe differential doesn’t have an oil pump; the gears just spin in the oil, which is contained within the differential case. The oil level is usually supposed to be at the base of the fill hole, but there is no indication of any kind that the differential oil is low