RC Crawler Scale Body Guide: Hard Plastic vs Lexan

By CrawlKin Editorial 8 min read Updated June 2026

Choosing a scale body is one of the most personal decisions in the crawler hobby, but it is easy to get it wrong and end up with a shell that does not fit, warps in the summer heat, or falls apart after a roll. The decisions narrow down quickly once you know your wheelbase, understand the hard plastic versus Lexan trade-off, and have a shortlist of bodies that have been proven on the platform you are running. This guide covers those fundamentals and then goes category by category through the most respected bodies for 313mm SCX10 and TRX-4 builds, the 2.2 class Wraith, and micro builds.

Quick answer

The Pro-Line 2021 Ford Bronco hard body is the most popular scale body for 313mm rigs like the SCX10 III and TRX-4 in 2026, delivering a convincing licensed Bronco replica in ABS that holds paint well. For a classic that the community universally respects, the Killerbody Toyota Land Cruiser LC70 remains the default choice for scale builders worldwide.

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Measure your wheelbase first, before anything else

The most common body mistake is ordering before confirming the wheelbase. Wheelbase is the center-to-center distance between the front and rear axles. Most 1/10 scale crawler bodies are designed for either a 313mm or 324mm wheelbase. The Axial SCX10 III and Traxxas TRX-4 both use a 313mm wheelbase in standard configuration, which is why most body listings for these platforms specify 313mm.

Measure from the center of the front axle to the center of the rear axle with the rig sitting level. If you have extended the chassis or are running a non-standard link setup, measure before ordering. Some TRX-4 builds use a 324mm extended configuration, which needs a different body shell. A 313mm body on a 324mm chassis will show wheel openings too far back relative to the wheels.

The Axial Wraith and RR10 Bomber are a different class entirely. They use 2.2 inch wheels and a wider track, so bodies made for 313mm 1.9 rigs do not apply. Check the Wraith-specific body listings separately.

Hard plastic ABS versus Lexan polycarbonate

Hard ABS plastic and Lexan polycarbonate are the two materials you will choose between, and they each have a clear use case.

Hard plastic ABS holds detail lines better, resists heat warping in a hot car, and takes paint from the outside so touch-ups are straightforward. It can crack on a hard roll, but it is more rigid and holds scale detail at a higher level than thin Lexan. The Pro-Line 2021 Ford Bronco Hard Body 313mm Wheelbase and Killerbody Toyota Land Cruiser LC70 Hard Body 313mm are both ABS builds that illustrate this: crisp panel lines and grille detail that Lexan would not hold as well.

Lexan polycarbonate is lighter and more flexible, which means it is less likely to crack on impact. The paint goes on the inside of the shell, which creates a deep gloss but makes touch-ups after chips nearly impossible. Lexan warps in a hot car faster than ABS. The Pro-Line 1985 Toyota 4Runner Crawler Body (Lexan) is the classic Lexan competition body: lighter weight for competition builds where grams matter, with the flexibility trade-off accepted.

For most trail and scale trail builders, hard ABS is the right choice. For competition crawlers managing weight limits or those who roll frequently, Lexan is the material that does not crack.

Pro-Line 2021 Ford Bronco Hard Body 313mm Wheelbase
4.7 scale bodies

Pro-Line 2021 Ford Bronco Hard Body 313mm Wheelbase

The most popular licensed scale crawler body of 2026. Hard plastic ABS with detailed Bronco grille, fender lines, and window frames for SCX10 III and TRX-4 builds.

Killerbody Toyota Land Cruiser LC70 Hard Body 313mm
4.8 scale bodies

Killerbody Toyota Land Cruiser LC70 Hard Body 313mm

The most beloved classic hard body in the crawler hobby worldwide. Detailed LC70 exterior with accurate window lines and panel shapes. Available painted or raw.

Pro-Line 1985 Toyota 4Runner Crawler Body (Lexan)
4.5 scale bodies

Pro-Line 1985 Toyota 4Runner Crawler Body (Lexan)

Classic 4Runner Lexan body with opening hood and scale detail. Lighter than hard plastic and very popular for competition builds where weight matters.

Best 313mm hard bodies for SCX10 III and TRX-4

The Pro-Line 2021 Ford Bronco Hard Body 313mm Wheelbase is the most-purchased scale body in the 313mm class in 2026. The licensed Ford Bronco replica has accurate grille and fender lines in hard ABS and fits both the SCX10 III and TRX-4 without modification. It ships unpainted so you control the color scheme. Painting an ABS body correctly takes time but the result is a body that holds detail and takes touch-ups for years.

The Killerbody Toyota Land Cruiser LC70 Hard Body 313mm is the other community-consensus pick. The LC70 profile is universally recognized and respected in the crawler hobby worldwide, and Killerbody's mold captures the window lines and panel shapes accurately. It is available in factory-painted versions that cost more but eliminate the paint step entirely.

For a premium build with functional details, the RC4WD 2015 Land Rover Defender D90 Hard Body Kit adds opening hood, removable roof, and working door handles in hard ABS. The assembly is more involved than a single-piece shell, but the functional detail it adds for scale competition scoring is significant.

Budget hard body builders should look at the INJORA Hard Plastic Jeep Cherokee Body 313mm , which delivers a clean Cherokee profile in hard plastic at a price that undercuts licensed bodies.

Pro-Line 2021 Ford Bronco Hard Body 313mm Wheelbase
4.7 scale bodies

Pro-Line 2021 Ford Bronco Hard Body 313mm Wheelbase

The most popular licensed scale crawler body of 2026. Hard plastic ABS with detailed Bronco grille, fender lines, and window frames for SCX10 III and TRX-4 builds.

Killerbody Toyota Land Cruiser LC70 Hard Body 313mm
4.8 scale bodies

Killerbody Toyota Land Cruiser LC70 Hard Body 313mm

The most beloved classic hard body in the crawler hobby worldwide. Detailed LC70 exterior with accurate window lines and panel shapes. Available painted or raw.

RC4WD 2015 Land Rover Defender D90 Hard Body Kit
4.6 scale bodies

RC4WD 2015 Land Rover Defender D90 Hard Body Kit

The definitive Defender replica with opening hood, removable roof, and working door handles in hard ABS. The go-to choice for detailed scale builds.

INJORA Hard Plastic Jeep Cherokee Body 313mm
4.3 scale bodies

INJORA Hard Plastic Jeep Cherokee Body 313mm

Popular budget-friendly hard plastic Cherokee replica fitting SCX10 II and III at 313mm wheelbase. Clean panel lines and low weight for a crawler body.

Body accessories to complete the build

A scale body alone does not complete the look. A metal front bumper like the INJORA Metal Front Bumper with LED Mounts for SCX10 and TRX-4 adds a realistic bumper line with built-in LED bar and winch mount, and costs under $30. It visually grounds the body to the chassis in a way the plastic mounting posts alone never do.

For overhead scale detail and functional lighting, the INJORA Metal Roof Rack with 5 LED Lights for 1/10 Crawlers fits SCX10, TRX-4, and Gen8 body post spacings and adds a metal rack with five pre-installed LEDs in one piece. The metal construction adds roof-level ballast, which is mildly useful for CG.

For the best stand-alone adjustable light bar, the Yeah Racing Aluminum LED Light Bar for 1/10 Crawlers steps up in build quality and adjustability versus plastic alternatives, with an aluminum housing and a bracket that lets you angle the beam forward or down depending on terrain.

Chassis protection that suits most scale builds is the ScalerFab Adjustable Steel Rock Sliders for SCX10 III for SCX10 III, which adds welded steel sliders with adjustable width and a lifetime warranty from a US specialist.

INJORA Metal Front Bumper with LED Mounts for SCX10 and TRX-4
4.6 scale accessories

INJORA Metal Front Bumper with LED Mounts for SCX10 and TRX-4

Steel front bumper with integrated LED bar mount and winch mount. The most-reviewed aftermarket bumper in the crawler accessories category on Amazon.

INJORA Metal Roof Rack with 5 LED Lights for 1/10 Crawlers
4.5 scale accessories

INJORA Metal Roof Rack with 5 LED Lights for 1/10 Crawlers

Metal roof rack with pre-installed 5-LED light bar. Fits SCX10, TRX-4, and Redcat Gen8 body post spacing. One piece that adds both structural scale detail and forward lighting.

Yeah Racing Aluminum LED Light Bar for 1/10 Crawlers
4.4 scale accessories

Yeah Racing Aluminum LED Light Bar for 1/10 Crawlers

Adjustable aluminum housing LED light bar with bracket for SCX10 and TRX-4 roofs. A step up in build quality and adjustability from plastic budget alternatives.

ScalerFab Adjustable Steel Rock Sliders for SCX10 III
4.7 scale accessories

ScalerFab Adjustable Steel Rock Sliders for SCX10 III

Welded steel adjustable rock sliders with a lifetime warranty from a US-based specialist. Mounts to the SCX10 III chassis rails with no cutting. Adjustable in width to clear different tire widths.

Painting hard plastic ABS bodies: what to know before you start

Hard ABS plastic is painted from the outside, which means scratch and chip repair is straightforward but the paint layer is also the first thing to contact rocks. Primer is not optional: spray a thin coat of plastic-compatible primer and let it cure fully before applying color, otherwise the paint layer will chip at first contact.

Masking is where most first-time painters lose time. Plan the color zones before spraying anything. Use low-tack automotive tape for panel lines and let each color layer dry completely before pulling tape or adding the next color. Trim window edges with a sharp knife after the final color coat.

The key practical difference from Lexan: with a Lexan body you spray colors in reverse order from the inside, darkest detail colors first. With ABS you paint in normal visual order from the outside. If you have ever painted a Lexan body, reset that habit before you start.

Featured in this guide
Pro-Line 2021 Ford Bronco Hard Body 313mm Wheelbase
4.7 scale bodies

Pro-Line 2021 Ford Bronco Hard Body 313mm Wheelbase

The most popular licensed scale crawler body of 2026. Hard plastic ABS with detailed Bronco grille, fender lines, and window frames for SCX10 III and TRX-4 builds.

Killerbody Toyota Land Cruiser LC70 Hard Body 313mm
4.8 scale bodies

Killerbody Toyota Land Cruiser LC70 Hard Body 313mm

The most beloved classic hard body in the crawler hobby worldwide. Detailed LC70 exterior with accurate window lines and panel shapes. Available painted or raw.

RC4WD 2015 Land Rover Defender D90 Hard Body Kit
4.6 scale bodies

RC4WD 2015 Land Rover Defender D90 Hard Body Kit

The definitive Defender replica with opening hood, removable roof, and working door handles in hard ABS. The go-to choice for detailed scale builds.

INJORA Metal Front Bumper with LED Mounts for SCX10 and TRX-4
4.6 scale accessories

INJORA Metal Front Bumper with LED Mounts for SCX10 and TRX-4

Steel front bumper with integrated LED bar mount and winch mount. The most-reviewed aftermarket bumper in the crawler accessories category on Amazon.

ScalerFab Adjustable Steel Rock Sliders for SCX10 III
4.7 scale accessories

ScalerFab Adjustable Steel Rock Sliders for SCX10 III

Welded steel adjustable rock sliders with a lifetime warranty from a US-based specialist. Mounts to the SCX10 III chassis rails with no cutting. Adjustable in width to clear different tire widths.

Related roundups

FAQ

Frequently asked questions

What wheelbase body fits an Axial SCX10 III?+

The SCX10 III uses a 313mm wheelbase in standard configuration, measured center-to-center between the front and rear axles. Most body listings for the SCX10 III specify 313mm explicitly. Measure your actual wheelbase before ordering, since modified link setups or extended chassis configurations can change the number.

Is hard plastic better than Lexan for a scale crawler body?+

For most trail and scale trail use, yes. Hard ABS holds detail lines better, resists heat warping, and takes paint from the outside so touch-ups are easy. Lexan is lighter and flexes rather than cracking on impact, which makes it better for competition builds managing weight limits or rigs that roll frequently. The trade-off is that Lexan paint is inside the shell and cannot be touched up after chips.

Do I need to paint a scale crawler body myself?+

It depends on the product. Killerbody and RC4WD sell pre-painted versions at a higher price. INJORA hard bodies typically ship unpainted. Pro-Line Lexan bodies always ship clear and require your own paint. Read the listing carefully. Unpainted bodies cost less but add significant hobby time for a quality finish, particularly for multi-color scale finishes with panel line masking.

What bumper should I add to a Bronco or LC70 hard body?+

The INJORA metal front bumper with LED mounts fits both SCX10 and TRX-4 patterns and is the most common first bumper buy for both platforms. It adds a realistic steel bumper with LED bar and winch mount holes for under $30. For a higher detail competition build, the RC4WD Tough Armor front bumper adds a purpose-built winch cradle and scale shackle tabs.