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}Need Help? Call Us1-866-529-0412
Guaranteed to Fit2021 GMC Sierra 3500 HD Change Vehicle
AC Delco® 2021 GMC Sierra 3500 HD - Differential Case - Direct Fit, Sold individually
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$139.99
Manufacturer #84756918
Guaranteed to Fit2021 GMC Sierra 3500 HD Change Vehicle
Qty:
1
Your Vehicle Fit Details
Vehicle Name
Submodel
Engine
Fitment Information
2021 GMC Sierra 3500 HD
AT4
All Engines
4-Door, Crew Cab Pickup, 4WD, 3.73R(GT4), 3.42 Ratio(GU6)
2021 GMC Sierra 3500 HD
SLT
All Engines
4-Door, Crew Cab Pickup, 4WD, 3.73R(GT4), 3.42 Ratio(GU6)
2021 GMC Sierra 3500 HD
SLE
All Engines
4-Door, Extended Cab Pickup, 4WD, 3.73R(GT4), 3.42 Ratio(GU6)
2021 GMC Sierra 3500 HD
Denali
All Engines
4-Door, Crew Cab Pickup, 4WD, 3.73R(GT4), 3.42 Ratio(GU6)
2021 GMC Sierra 3500 HD
Base
All Engines
4-Door, Extended Cab Pickup, 4WD, 3.73R(GT4), 3.42 Ratio(GU6)
Highlights
Part:
Brand:
Location:
Front
Product Fit:
Direct Fit
Recommended Use:
OE Replacement
Warranty:
24-months or unlimited mile AC Delco limited warranty
Quantity Sold:
Sold individually
Prop 65 Warning:
WARNING: 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.
Fitnotes:
4-Door, Crew Cab Pickup, 4WD, 3.73R(GT4), 3.42 Ratio(GU6),4-Door, Extended Cab Pickup, 4WD, 3.73R(GT4), 3.42 Ratio(GU6)
Vehicle Fitment Information
Vehicle Name
Submodel
Engine
Fitment Information
2020-2021 Chevrolet Silverado 2500 HD
Custom
All Engines
4-Door, Extended Cab Pickup, RWD, 162.5 in. Wheelbase, 3.42R(GU6)
2020-2021 Chevrolet Silverado 2500 HD
High Country
All Engines
4-Door, Crew Cab Pickup, 4WD, 172.0 in. Wheelbase, 3.42R(GU6)
2020-2021 Chevrolet Silverado 2500 HD
LT
All Engines
4-Door, Crew Cab Pickup, RWD, 158.9 in. Wheelbase, 3.42R(GU6); 3.73R(GT4)
2020-2021 Chevrolet Silverado 2500 HD
LTZ
All Engines
4-Door, Extended Cab Pickup, RWD, 149.4 in. Wheelbase, 3.42R(GU6); 3.73R(GT4)
2020-2021 Chevrolet Silverado 2500 HD
WT
All Engines
4-Door, Extended Cab Pickup, RWD, 162.5 in. Wheelbase, 3.42R(GU6)
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Product Information
ACDELCO OE REPLACEMENT DIFFERENTIAL CASE
The factory-original fit and lasting function of ACDelco’s OE replacement Differential Case provides the perfect repair without breaking your budget. Established in 1899, ACDelco manufactures original GM parts and premium OE replacement parts for other brands in the automotive aftermarket.
- High-grade design delivers extended lifespan
- Carefully formed to suit your specific vehicle
- Engineered to OE-quality standards
- Has undergone stringent evaluation to guarantee proper fit and performance
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.