GMC Sierra 2500HD vs Chevrolet Avalanche Dimensions & Size Comparison
Comparing 2013 catalog dimensions. GMC Sierra 2500HD · Chevrolet Avalanche
- Length225.0 in – 259.1 in
- Height77.5 in – 78.3 in
- Wheelbase133.7 in – 167.7 in
- Ground clearance9.8 in
- Curb weight5,630 lb – 6,601 lb
- Width80.0 in
- Chevrolet Avalanche width79.1 in
Which is bigger?
- Length: Chevrolet Avalanche is 20.8 in shorter (242.1 in vs 221.3 in)
- Width: Chevrolet Avalanche is 0.9 in narrower (80.0 in vs 79.1 in)
- Height: GMC Sierra 2500HD is 1.3 in taller (77.9 in vs 76.6 in)
- Wheelbase: GMC Sierra 2500HD has a 20.7 in longer wheelbase (150.7 in vs 130.0 in)
- Curb weight: GMC Sierra 2500HD is 362 lb heavier (6,116 lb vs 5,754 lb)
Biggest size differences
- Wheelbase: GMC Sierra 2500HD has a 20.7 in longer wheelbase (150.7 in vs 130.0 in)
- Length: Chevrolet Avalanche is 20.8 in shorter (242.1 in vs 221.3 in)
- Curb weight: GMC Sierra 2500HD is 362 lb heavier (6,116 lb vs 5,754 lb)
- Height: GMC Sierra 2500HD is 1.3 in taller (77.9 in vs 76.6 in)
- Width: Chevrolet Avalanche is 0.9 in narrower (80.0 in vs 79.1 in)
Practical verdicts
- Easier to fit in a short garageChevrolet Avalanche — Chevrolet Avalanche is shorter by 20.8 in Check garage fit for GMC Sierra 2500HD · garage fit for Chevrolet Avalanche
- Narrower for tight parkingChevrolet Avalanche — Chevrolet Avalanche is narrower by 0.9 in
- Smaller exterior footprintChevrolet Avalanche — Based on length × width (Chevrolet Avalanche)
Dimension comparison
| Spec | GMC Sierra 2500HD | Chevrolet Avalanche | Difference |
|---|---|---|---|
| Length | 242.1 in | 221.3 in | 20.8 in |
| Width | 80.0 in | 79.1 in | 0.9 in |
| Height | 77.9 in | 76.6 in | 1.3 in |
| Wheelbase | 150.7 in | 130.0 in | 20.7 in |
| Ground clearance | 9.8 in | — | — |
| Curb weight | 6,116 lb | 5,754 lb | 362 lb |
Values use trim midpoints when a model year lists a range (e.g. length 225.0 in – 259.1 in).
Compare by year
Overlapping model years with dimension data.
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