2021 GMC Sierra 1500 AT4 vs. 2021 RAM 1500 Rebel®

Looking for a new pickup truck that’s ready for whatever you are? If having a truck that can confidently tackle your daily Amarillo commutes and also hit the Midland backroads on the weekend with ease is a priority, you’ve likely taken to exploring the 2021 GMC Sierra 1500 AT4 and the 2021 RAM 1500 Rebel®. But how do these two trucks stack up? Read on for a full comparison of the 2021 GMC Sierra 1500 AT4 vs. RAM 1500 Rebel®! Still have questions after our comparison? Just reach out to us online or call 806-686-6023, and we’ll be happy to help.

GMC vs. RAM: Power & Torque

The GMC Sierra 1500 AT4 is a true powerhouse! This pickup offers more available power than the RAM 1500 Rebel®, bar none. While the RAM 1500 does pull out slightly ahead with regards to maximum available torque, it loses ground again where transmissions are concerned. That’s because the GMC offers a transmission with more gears for smoother shifting, which also makes for more pleasant towing and hauling. Here’s more on the GMC Sierra 1500 AT4 vs. RAM 1500 Rebel® power and performance:

• GMC Sierra 1500 AT4 Max. Horsepower: 420 hp
• RAM 1500 Rebel® Max. Horsepower: 395 hp
• GMC Sierra 1500 AT4 Max. Torque: 460 lb-ft
• RAM 1500 Rebel® Max. Torque: 480 lb-ft
• GMC Sierra 1500 AT4 Transmission: 10-speed automatic transmission
• RAM 1500 Rebel® Transmission: 8-speed automatic transmission

GMC vs. RAM: Interior Cab & Bed Dimensions:

GMC Sierra 1500 AT4

• Headroom (front/rear): 43.0/43.1 inches
• Legroom (front/rear): 44.5/43.4 inches
• Shoulder Room (front/rear): 66.0/65.2 inches
• Crew Cab Pickup Box (L/W/H): 69.9 x 71.4 x 22.4 inches
• Crew Cab Pickup Box Volume: 62.9 cubic feet

RAM 1500 Rebel® 

• Headroom (front/rear): 40.9/39.8 inches
• Legroom (front/rear): 40.9/45.2 inches
• Shoulder Room (front/rear): 66.0/65.7 inches
• Crew Cab Pickup Box (L/W/H): 67.4 x 66.4 x 21.4 inches
• Crew Cab Pickup Box Volume: 53.9 cubic feet

Compare the GMC Sierra 1500 AT4 vs. RAM 1500 Rebel® in Lubbock at Frank Brown GMC

Now that you’ve had a chance to compare the power and size of the RAM 1500 Rebel® and GMC Sierra 1500 AT4, we invite you, when safe and convenient, to explore how these two trucks measure up more on a test-drive at Frank Brown GMC in Lubbock! Meanwhile, browse our new Sierra 1500 inventory online and then apply for financing!

Disclaimers: *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details. Click here to see all GMC destination freight charges.