When it comes to upfitting a GMC Savana or Chevy Express, there’s no shortage of customization options. Whether you’re a contractor, electrician, HVAC tech, or delivery driver, your van can become a true mobile workshop—but only if you plan your build carefully. At Upfit Supply, we don’t just sell parts—we use them. In this blog, we’re walking through exactly what to consider before starting your build. Let’s dive in.

Why Upfitting a GMC Savana or Chevy Express Makes Sense

The GMC Savana and Chevrolet Express are some of the longest-running cargo vans on the road. Known for their durability and simplicity, they haven’t changed much since the 1990s—which means parts and accessories are widely available.

Whether you’re using the 135″ standard wheelbase or the 155″ extended wheelbase, these vans offer a great platform for upfitting thanks to:

  • Plenty of aftermarket support
  • Heavy-duty capabilities (GVWR up to 9,800 lbs)
  • Optional 6.6L V8 engine
  • Towing capacity up to 7,400 lbs
  • Straightforward, gutter-mounted ladder rack compatibility

Key Considerations Before You Start Your Upfitting your GMC Savana or Chevy Express

Add a Partition for Safety

Upfitting a GMC Savana or Chevy Express should always begin with a bulkhead or partition. It:

  • Protects the driver from shifting cargo
  • Helps with climate control inside the cab
  • Reduces road noise from the cargo area

We recommend a composite Weather Guard CabMax partition, which installs without floor drilling and offers an excellent seal around the edges.

Choose the Right Floor

Factory floors often soak up moisture and lead to mildew. We recommend a rigid floor system such as:

  • Legend Stabiligrip Floor
  • Composite or diamond plate options

These prevent tripping hazards, increase traction, and protect your OEM floor.

Important Van-Specific Factors

Upfitting these vans means dealing with a few unique features:

  • Fuel filler housing on the driver’s side needs to be worked around.
  • Vertical wall supports only (no horizontal crossmembers), which affects shelving install.
  • Some OEM wiring harnesses are exposed—plan around them during insulation or wall liner installs.
  • Rear door jack housing can eat into storage space.

Recommendations for Better Security in you Work van setup

Since these vans are so common, unfortunately, they’re also frequently targeted for theft. That’s why it’s worth adding extra security:

  • Slick Locks for side and rear doors
  • Interior window guards to protect glass
  • Thunderbolt deadbolts for invisible, tamper-proof security

Essential Upfitting Accessories for your Cargo van customization

Install Durable Seat Covers

Preserve the resale value with TigerTough seat covers. These are:

  • Made in the USA
  • Built from 1,000 denier Cordura
  • Resistant to tears, water, and wear
  • Compatible with airbags

Improve Lighting in your Work Van Setup

The OEM dome lights don’t offer much. We recommend upgrading to:

  • LED motion-activated ceiling lights
  • Plug-and-play harnesses for simple install

Insulate the Cargo Van Area

Controlling climate and sound is critical. Combine these solutions:

  • Autoly thermal insulation kits
  • Legend insulated Duratherm wall, ceiling, and door liners

Maximize Exterior Utility in your Work Van Setup

Install a Gutter-Mounted Ladder Rack

These vans use gutter mounts, giving you flexibility in placement. We recommend the Vantech H1 3-bar system paired with a rear roller bar for easy loading.

Add Side Steps for Roof Access

Reach the ladder rack easily with Luverne O-Mega II running boards. These:

  • Offer 6-inch step width
  • Mount with no drilling
  • Come in black or silver powder coat

Rear Visibility and Protection

Glass and Window Guard Considerations

If your van has rear glass:

  • Install window screens to reduce visibility and prevent break-ins
  • Use Legend window guards for internal protection

Power and Towing Options

You can tow heavy loads if equipped with the optional V8 engine. We recommend:

  • Factory or aftermarket hitch
  • Plug-in trailer wiring harnesses for seamless integration

Final Tips Before You Begin

Here’s a quick checklist to ensure a smooth install when upfitting a GMC Savana or Chevy Express:

  • Know your wheelbase (135″ or 155″)
  • Plan for mounting locations based on vertical supports
  • Protect your investment with security add-ons
  • Don’t forget ventilation and lighting
  • Use modular shelving and roof solutions that adapt to your workflow

Upfitting a GMC Savana or Chevy Express with Confidence

At Upfit Supply, we’ve worked with thousands of vans just like yours. That’s why we carry vehicle-specific gear designed to make installs faster, safer, and more effective. Whether you’re looking for shelving, security, flooring, or lighting—we’ve got it in stock and ready to ship.

Looking to get started on upfitting a GMC Savana or Chevy Express?
Shop all accessories here