Large Wheel Tubs With Side Panels (Pair) – Heavy-Duty 16-Gauge Steel | 36" × 20" × 11" | Universal Foundation for Custom Builds, Deep-Lip Wheels & Wide Tire Fitment

When you are building a modern custom vehicle—whether it’s a classic muscle car, hot rod, mini-truck, full-size truck, pro-touring machine, or a fully bagged show build—one of the biggest challenges is interior wheel clearance. With today’s deep-dish wheels, aggressive offsets, wide performance tires, narrowed or widened rear ends, custom suspension travel, and extreme stance setups, factory wheel wells simply cannot handle the demand. That’s where our Large Wheel Tubs With Side Panels (Pair) step in, offering exceptional clearance, high structural integrity, and a foundation you can rely on for serious fabrication work.

Engineered from heavy-duty 16-gauge steel, these large wheel tubs provide fabricators and builders with a strong, customizable platform for professional-grade installation. Measuring approximately 36 inches long, 20 inches high, and 11 inches deep, they strike the perfect balance between size, strength, and adaptability—making them ideal for a wide range of applications from mini-tub conversions to full tub replacements and custom wide-tire setups.

Sold as a matched pair, these wheel tubs come with optional side panels to help you complete transitions cleanly and efficiently. They are specifically designed to be trimmed, welded, and shaped according to your exact build, whether you're reworking a custom trunk floor, modifying a truck bed, widening the wheelhouse, or creating space for oversized tires.

Key Features of the Large Wheel Tubs With Side Panels (Pair)

Heavy-Duty 16-Gauge Steel Construction

These wheel tubs are made from premium, thick 16-gauge steel. This heavy-duty material is ideal for:

• Structural rigidity

• Strength during suspension travel

• High-quality weld seams

• Minimal warping during fabrication

• Long-term durability under stress

Unlike cheaper thin-gauge alternatives, these tubs provide a solid, reliable base for builders who need a strong starting point for their custom metalwork.

Looking for a Notch Cover ??  Check out our Large Wheel Tubs and Hex Notch Cover OR Large Wheel Tub and Round Notch Cover Combo

Large Dimensions for Enhanced Clearance

The dimensions of 36" × 20" × 11" make these wheel tubs suitable for a wide variety of applications, offering ample room for:

• Wide performance tires

• Deep-lip wheels

• Custom wheel and tire combinations

• Air ride and bagged suspension

• Coil-over and custom travel geometry

• Off-road or drag racing tire clearance

• Mini-tub and full-tub conversions

These tubs are large enough to significantly increase your wheel travel area, yet small enough to be adaptable across multiple vehicle types.

Side Panels for Clean Installation

Side panels drastically reduce the amount of custom fabrication required for closing off gaps, shaping transitions, or finishing the installation. With these side panels:

• Bed and trunk floor transitions become easier

• Fitment becomes more precise

• Total time spent fabricating is reduced

• Final results look cleaner and more professional

These side panels are perfect for any builder aiming for a smooth, finished appearance.

Sold in Pairs

Every order includes two matched wheel tubs and two side panels, one set for each side of the vehicle. Having a symmetrical setup is vital to ensuring smooth suspension travel, proper stance, and aesthetic balance.

Universal Fabrication Platform

While these wheel tubs do not come pre-shaped for any specific vehicle, this is actually a major advantage for custom builders. Their universal format lets you:

• Trim to exact measurements

• Weld into custom trunks, beds, or wheel wells

• Adapt to nearly any build style

• Control the width, height, and shape

• Maintain full creative and engineering flexibility

From trucks to cars, from slammed to lifted, these wheel tubs can be adapted to just about any project.

Why Builders Choose These Large Wheel Tubs

1. Deep-Lip Wheel Clearance

Modern wheels often feature lips between 4–10 inches or more. Combined with wide tires, these drops inside the wheel well can get tight—fast. These large tubs allow proper clearance and prevent rubbing.

2. Mini-Tub & Wide Tire Conversions

Classic muscle cars and modern street builds are pushing past factory limitations. These tubs allow wider tires for better traction, power distribution, and stance.

3. Air Ride Suspension Travel

Bagged vehicles, especially those that lay frame or body, require significant clearance at full compression. These tubs prevent tire-to-metal contact and allow safe, smooth drop.

4. Custom Truck Bed & Trunk Fabrication

For custom beds, shaved bedsides, or relocated suspension setups, these wheel tubs help create a finished, show-ready interior.

5. Drag Racing, Autocross, & High-Performance Builds

Wider tires mean more grip—and more room required. These tubs are ideal for performance-oriented applications where traction matters.

6. One-Off Custom Chassis & Axle Work

If you’re working with a modified rear end, custom back-half, or altered geometry, these wheel tubs accommodate your setup with ease.

Applications Ideal for These Wheel Tubs

Mini-Tub Conversions on Classic Cars

For builds like Chevelles, Camaros, Mustangs, Novas, and Challengers, rear-end clearance is often limited. These tubs allow you to widen the track, mount bigger wheels, and still maintain a clean finished look.

Truck Bed Builds & Body-Dropped Trucks

If you’re doing a frame-up truck, lowered body, or custom bed floor, the width and depth of these tubs let you integrate the rear housing without sacrificing form or function.

Bagged or Air Ride Vehicles

With extreme travel demands, the wheel needs to tuck fully without interfering with body or frame. These tubs provide the space for full compression and full extension.

Hot Rods & Custom Builds

When you’re customizing a ’30s-’50s build, you want metal that’s ready for shaping, welding and finishing. These tubs give you that foundation.

Drag, Street, and Show Builds

Whether you need a wide tire for launch or a big-lip wheel for stance, these tubs allow you to safely fit modern equipment while keeping body structure intact.

Full Custom Builds

Bagged, bodied, track-ready, or tube-chassis—these tubs adapt to it all.

Exact Measurements

Fitment Disclaimer

We cannot guarantee that these wheel tubs will fit your vehicle. There are too many variables, including:

• Tire height

• Tire width

• Wheel offset and backspacing

• Wheel diameter

• Shortened or widened axles

• Ride height and suspension type

• Custom frame modifications

• Body drop or Z-notch modifications

• Vehicle make and model differences

Because every custom build is different, you must measure your vehicle BEFORE cutting or welding.

Fabrication Required

These wheel tubs are foundation material only. They WILL require:

• Cutting

• Trimming

• Welding

• Grinding

• Measuring and leveling

• Bodywork and sealing

• Primer and finishing

They are not pre-formed for a specific vehicle and will not bolt on.

Installation Overview (General Guide)

1. Set Your Vehicle at Ride Height

Whether static dropped, air ride, or lifted, determine final wheel location.

2. Remove Factory Wheel Tubs

Cut out OEM sheet metal from the trunk or bed area.

3. Mock-Up New Tubs

Hold the wheel tubs in place and determine any required trimming.

4. Trim to Fit

Shape the metal using cutting tools for a clean match.

5. Weld Into Position

MIG or TIG welding is recommended for structural integrity.

6. Install Side Panels

These help fill gaps and create clean transitions.

7. Seal & Protect

Use seam sealer, primer, and protective coatings to prevent corrosion.

8. Apply Final Finish

Paint, bedliner, or body-matched coating completes the installation.

Why These Wheel Tubs Stand Out

• Built from high-quality 16-gauge steel

• Large size adapts to nearly any build

• Perfect for professional builders

• Designed to support large wheels and wide tires

• Optional side panels speed up installation

• Suitable for classic, modern, and fully custom vehicles

• Made for long-term reliability and structural integrity

If your build demands strong, large, and highly adaptable wheel wells, these tubs are the perfect foundation.

Order Your Large Wheel Tubs With Side Panels Today

Whether you're planning a high-power street machine, a show-level bagged truck, or a custom chassis project requiring maximum clearance, these Large Wheel Tubs With Side Panels (Pair) deliver the size, strength, and build versatility you need. They’re engineered to withstand real-world use while giving you the freedom to shape your project your way.

When you need more clearance, more strength, and more customization potential… you need these wheel tubs.