Spec Sizes

GMC Sierra 2500HD vs Chevrolet Silverado 3500HD Dimensions & Size Comparison

Comparing 2021 catalog dimensions. GMC Sierra 2500HD · Chevrolet Silverado 3500HD

Same scale for both vehicles. Generic silhouette — proportional to measured length, height, width, wheelbase, and clearance.

Side view
  • 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
Front / width
  • Width81.8 in
  • Chevrolet Silverado 3500HD width81.8 in – 96.6 in

Which is bigger?

  • Length: Chevrolet Silverado 3500HD is 0.1 in shorter (250.8 in vs 250.8 in)
  • Width: GMC Sierra 2500HD is 7.4 in narrower (81.8 in vs 89.2 in)
  • Height: Chevrolet Silverado 3500HD is 0.6 in taller (79.8 in vs 80.5 in)
  • Wheelbase: essentially the same
  • Ground clearance: Chevrolet Silverado 3500HD has 0.7 in more ground clearance (10.1 in vs 10.8 in)
  • Curb weight: Chevrolet Silverado 3500HD is 264 lb heavier (6,528 lb vs 6,792 lb)

Biggest size differences

  1. Width: GMC Sierra 2500HD is 7.4 in narrower (81.8 in vs 89.2 in)
  2. Ground clearance: Chevrolet Silverado 3500HD has 0.7 in more ground clearance (10.1 in vs 10.8 in)
  3. Curb weight: Chevrolet Silverado 3500HD is 264 lb heavier (6,528 lb vs 6,792 lb)
  4. Height: Chevrolet Silverado 3500HD is 0.6 in taller (79.8 in vs 80.5 in)
  5. Length: Chevrolet Silverado 3500HD is 0.1 in shorter (250.8 in vs 250.8 in)

Practical verdicts

  • Easier to fit in a short garageChevrolet Silverado 3500HD — Chevrolet Silverado 3500HD is shorter by 0.1 in Check garage fit for GMC Sierra 2500HD · garage fit for Chevrolet Silverado 3500HD
  • Narrower for tight parkingGMC Sierra 2500HD — GMC Sierra 2500HD is narrower by 7.4 in
  • More ground clearanceChevrolet Silverado 3500HD — Chevrolet Silverado 3500HD has 0.7 in more clearance
  • Smaller exterior footprintGMC Sierra 2500HD — Based on length × width (GMC Sierra 2500HD)

Dimension comparison

SpecGMC Sierra 2500HDChevrolet Silverado 3500HDDifference
Length250.8 in250.8 in0.1 in
Width81.8 in89.2 in7.4 in
Height79.8 in80.5 in0.6 in
Wheelbase156.8 in156.8 in0.0 in
Ground clearance10.1 in10.8 in0.7 in
Curb weight6,528 lb6,792 lb264 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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