GMC Sierra 2500HD vs Chevrolet Avalanche Dimensions & Size Comparison
Comparing 2023 vs 2013 catalog dimensions. GMC Sierra 2500HD · Chevrolet Avalanche
- Length235.5 in – 266.1 in
- Height79.7 in – 80.0 in
- Wheelbase141.6 in – 172.0 in
- Ground clearance10.1 in – 10.2 in
- Curb weight6,105 lb – 6,950 lb
- Width81.8 in
- Chevrolet Avalanche width79.1 in
Which is bigger?
- Length: Chevrolet Avalanche is 29.5 in shorter (250.8 in vs 221.3 in)
- Width: Chevrolet Avalanche is 2.7 in narrower (81.8 in vs 79.1 in)
- Height: GMC Sierra 2500HD is 3.3 in taller (79.8 in vs 76.6 in)
- Wheelbase: GMC Sierra 2500HD has a 26.8 in longer wheelbase (156.8 in vs 130.0 in)
- Curb weight: GMC Sierra 2500HD is 774 lb heavier (6,528 lb vs 5,754 lb)
Biggest size differences
- Wheelbase: GMC Sierra 2500HD has a 26.8 in longer wheelbase (156.8 in vs 130.0 in)
- Curb weight: GMC Sierra 2500HD is 774 lb heavier (6,528 lb vs 5,754 lb)
- Length: Chevrolet Avalanche is 29.5 in shorter (250.8 in vs 221.3 in)
- Height: GMC Sierra 2500HD is 3.3 in taller (79.8 in vs 76.6 in)
- Width: Chevrolet Avalanche is 2.7 in narrower (81.8 in vs 79.1 in)
Practical verdicts
- Easier to fit in a short garageChevrolet Avalanche — Chevrolet Avalanche is shorter by 29.5 in Check garage fit for GMC Sierra 2500HD · garage fit for Chevrolet Avalanche
- Narrower for tight parkingChevrolet Avalanche — Chevrolet Avalanche is narrower by 2.7 in
- Smaller exterior footprintChevrolet Avalanche — Based on length × width (Chevrolet Avalanche)
Dimension comparison
| Spec | GMC Sierra 2500HD | Chevrolet Avalanche | Difference |
|---|---|---|---|
| Length | 250.8 in | 221.3 in | 29.5 in |
| Width | 81.8 in | 79.1 in | 2.7 in |
| Height | 79.8 in | 76.6 in | 3.3 in |
| Wheelbase | 156.8 in | 130.0 in | 26.8 in |
| Ground clearance | 10.1 in | — | — |
| Curb weight | 6,528 lb | 5,754 lb | 774 lb |
Values use trim midpoints when a model year lists a range (e.g. length 235.5 in – 266.1 in).
Compare by year
Overlapping model years with dimension data.
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