Spec Sizes

2018 Chevrolet Silverado 3500HD Dimensions, Sizes & Specifications

Based on 44 trims — exact values when identical, ranges when trims differ. Generation: Third generation (GMTK2XX).

  • Length224.4 in – 258.4 in
  • Width80.1 in – 96.0 in
  • Height76.8 in – 78.3 in
  • Wheelbase133.6 in – 167.7 in
  • Ground clearance8.0 in – 8.8 in
  • Curb weight5,985 lb – 7,239 lb

Proportional size visualization from measured dimensions — not exact body geometry.

Side view
  • Length224.4 in – 258.4 in
  • Height76.8 in – 78.3 in
  • Wheelbase133.6 in – 167.7 in
  • Ground clearance8.0 in – 8.8 in
  • Curb weight5,985 lb – 7,239 lb
Front / width
  • Width80.1 in – 96.0 in

Proportional exterior silhouette from catalog length, width and height. The explorer below is a systems map — different purpose, not a second silhouette.

Explore your 2018 Chevrolet Silverado 3500HD

Interactive systems diagram for this model year — measure, check fitment, and open the matching SpecSizes tools. Schematic only; not photorealistic body styling.

  • Dimensions
  • Wheels
  • Tires
  • Wipers
  • Interior
Generic vehicle systems diagramSchematic side and front outline marking measurement and maintenance areas. Not exact body geometry.Side schematicFront

Available for this vehicle

  • Dimensions
  • Wheels
  • Tires
  • Wipers
  • Interior

Select a system below or on the diagram. This schematic marks measurement areas — it is not body-accurate styling.

Will it fit in my garage?Compare this vehicleFind cars this sizeWill these wheels fit?

Catalog summaries

Exterior: 224.4 in – 258.4 in · 80.1 in – 96.0 in · 76.8 in – 78.3 in. Full dimensions

Wheels: bolt pattern 8x180, bore 124.1 mm. Wheel sizes

Tires: LT265/70SR18.0E BSW AS, LT235/80SR17.0E BSW highway, 265/70R18, 275/65R20. Tire sizes

What do you want to check?

Exterior dimensions

Length224.4 in – 258.4 in
Width80.1 in – 96.0 in
Height76.8 in – 78.3 in
Wheelbase133.6 in – 167.7 in
Ground clearance8.0 in – 8.8 in

Interior dimensions

Front headroom43.0 in
Rear headroom39.0 in – 41.0 in
Front legroom45.3 in
Rear legroom34.7 in – 40.9 in
Front shoulder room65.0 in – 66.0 in
Rear shoulder room64.0 in
Front hip room61.0 in
Rear hip room60.0 in

Weight & capacities

Curb weight5,985 lb – 7,239 lb
GVWR10,000 lb – 13,500 lb
Fuel tank36.0 gal
Max towing capacity13,000 lb – 14,000 lb

Engine

  • 1887 1914
Torque380 lb-ft

Torque shown in lb-ft as stored in the catalog.

Wheels, tires & maintenance sizes

Tire sizes Full tire size page → · Wheel fitment →

  • LT265/70SR18.0E BSW AS
  • LT235/80SR17.0E BSW highway
  • 265/70R18
  • 275/65R20

Wiper sizes Full wiper size page →

  • Driver22"
  • Passenger22"
Trim-by-trim dimensions (44 trims)
TrimLengthWidthHeightWheelbaseClearanceCurb wt
High Country 4x2 Crew Cab 153.7 in. WB SRW239.580.578.3153.78.66423
High Country 4x2 Crew Cab 167.7 in. WB DRW258.496.077.8167.78.36888
High Country 4x2 Crew Cab 167.7 in. WB SRW258.480.577.9167.78.46551
High Country 4x4 Crew Cab 153.7 in. WB SRW239.580.578.2153.78.46717
High Country 4x4 Crew Cab 167.7 in. WB DRW258.496.077.8167.78.37239
High Country 4x4 Crew Cab 167.7 in. WB SRW258.480.578.1167.78.56901
LT 4x2 Crew Cab 153.7 in. WB SRW239.580.578.3153.78.66423
LT 4x2 Crew Cab 167.7 in. WB DRW258.496.077.8167.78.36888
LT 4x2 Crew Cab 167.7 in. WB SRW258.480.577.9167.78.46551
LT 4x2 Double Cab 158.1 in. WB DRW248.996.077.6158.18.46765
LT 4x2 Double Cab 158.1 in. WB SRW248.980.578.0158.18.76429
LT 4x2 Regular Cab 133.6 in. WB DRW224.496.076.8133.68.06322
LT 4x2 Regular Cab 133.6 in. WB SRW224.480.177.8133.68.45985
LT 4x4 Crew Cab 153.7 in. WB SRW239.580.578.2153.78.46717
LT 4x4 Crew Cab 167.7 in. WB DRW258.496.077.8167.78.37239
LT 4x4 Crew Cab 167.7 in. WB SRW258.480.578.1167.78.56901
LT 4x4 Double Cab 158.1 in. WB DRW248.996.077.6158.18.57045
LT 4x4 Double Cab 158.1 in. WB SRW248.980.578.0158.18.86708
LT 4x4 Regular Cab 133.6 in. WB DRW224.496.077.2133.68.16651
LT 4x4 Regular Cab 133.6 in. WB SRW224.480.177.9133.68.76314
LTZ 4x2 Crew Cab 153.7 in. WB SRW239.580.578.3153.78.66423
LTZ 4x2 Crew Cab 167.7 in. WB DRW258.496.077.8167.78.36888
LTZ 4x2 Crew Cab 167.7 in. WB SRW258.480.577.9167.78.46551
LTZ 4x2 Double Cab 158.1 in. WB DRW248.996.077.6158.18.46765
LTZ 4x2 Double Cab 158.1 in. WB SRW248.980.578.0158.18.76429
LTZ 4x4 Crew Cab 153.7 in. WB SRW239.580.578.2153.78.46717
LTZ 4x4 Crew Cab 167.7 in. WB DRW258.496.077.8167.78.37239
LTZ 4x4 Crew Cab 167.7 in. WB SRW258.480.578.1167.78.56901
LTZ 4x4 Double Cab 158.1 in. WB DRW248.996.077.6158.18.57045
LTZ 4x4 Double Cab 158.1 in. WB SRW248.980.578.0158.18.86708
WT 4x2 Crew Cab 153.7 in. WB SRW239.580.578.3153.78.66423
WT 4x2 Crew Cab 167.7 in. WB DRW258.496.077.8167.78.36888
WT 4x2 Crew Cab 167.7 in. WB SRW258.480.577.9167.78.46551
WT 4x2 Double Cab 158.1 in. WB DRW248.996.077.6158.18.46765
WT 4x2 Double Cab 158.1 in. WB SRW248.980.578.0158.18.76429
WT 4x2 Regular Cab 133.6 in. WB DRW224.496.076.8133.68.06322
WT 4x2 Regular Cab 133.6 in. WB SRW224.480.177.8133.68.45985
WT 4x4 Crew Cab 153.7 in. WB SRW239.580.578.2153.78.46717
WT 4x4 Crew Cab 167.7 in. WB DRW258.496.077.8167.78.37239
WT 4x4 Crew Cab 167.7 in. WB SRW258.480.578.1167.78.56901
WT 4x4 Double Cab 158.1 in. WB DRW248.996.077.6158.18.57045
WT 4x4 Double Cab 158.1 in. WB SRW248.980.578.0158.18.86708
WT 4x4 Regular Cab 133.6 in. WB DRW224.496.077.2133.68.16651
WT 4x4 Regular Cab 133.6 in. WB SRW224.480.177.9133.68.76314

Values in inches / pounds as stored. Ranges above reflect trim variation.

Same generation (Third generation (GMTK2XX)): years 2015–2019. View model overview

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