GMC Sierra 2500HD vs Chevrolet Avalanche Dimensions & Size Comparison
Comparing 2017 vs 2013 catalog dimensions. GMC Sierra 2500HD · Chevrolet Avalanche
- Length224.4 in – 258.4 in
- Height77.8 in – 78.3 in
- Wheelbase133.6 in – 167.7 in
- Ground clearance8.8 in – 9.7 in
- Curb weight5,741 lb – 6,693 lb
- Width80.1 in – 80.5 in
- Chevrolet Avalanche width79.1 in
Which is bigger?
- Length: Chevrolet Avalanche is 20.1 in shorter (241.4 in vs 221.3 in)
- Width: Chevrolet Avalanche is 1.2 in narrower (80.3 in vs 79.1 in)
- Height: GMC Sierra 2500HD is 1.5 in taller (78.0 in vs 76.6 in)
- Wheelbase: GMC Sierra 2500HD has a 20.6 in longer wheelbase (150.6 in vs 130.0 in)
- Curb weight: GMC Sierra 2500HD is 463 lb heavier (6,217 lb vs 5,754 lb)
Biggest size differences
- Wheelbase: GMC Sierra 2500HD has a 20.6 in longer wheelbase (150.6 in vs 130.0 in)
- Length: Chevrolet Avalanche is 20.1 in shorter (241.4 in vs 221.3 in)
- Curb weight: GMC Sierra 2500HD is 463 lb heavier (6,217 lb vs 5,754 lb)
- Height: GMC Sierra 2500HD is 1.5 in taller (78.0 in vs 76.6 in)
- Width: Chevrolet Avalanche is 1.2 in narrower (80.3 in vs 79.1 in)
Practical verdicts
- Easier to fit in a short garageChevrolet Avalanche — Chevrolet Avalanche is shorter by 20.1 in Check garage fit for GMC Sierra 2500HD · garage fit for Chevrolet Avalanche
- Narrower for tight parkingChevrolet Avalanche — Chevrolet Avalanche is narrower by 1.2 in
- Smaller exterior footprintChevrolet Avalanche — Based on length × width (Chevrolet Avalanche)
Dimension comparison
| Spec | GMC Sierra 2500HD | Chevrolet Avalanche | Difference |
|---|---|---|---|
| Length | 241.4 in | 221.3 in | 20.1 in |
| Width | 80.3 in | 79.1 in | 1.2 in |
| Height | 78.0 in | 76.6 in | 1.5 in |
| Wheelbase | 150.6 in | 130.0 in | 20.6 in |
| Ground clearance | 9.3 in | — | — |
| Curb weight | 6,217 lb | 5,754 lb | 463 lb |
Values use trim midpoints when a model year lists a range (e.g. length 224.4 in – 258.4 in).
Compare by year
Overlapping model years with dimension data.
Already own one of these cars?
Jump to maintenance sizes on the vehicle page — tires, wipers, battery, and oil when present in the catalog.