Ford F-600 vs F-550: Understanding the Difference for Crane Body Upfits
Ford’s Super Duty lineup offers two closely related Class 5–6 chassis cabs — the F-550 and the F-600 — that are often confused but serve meaningfully different roles for crane body upfits. If you’re planning to mount a truck-mounted crane on a Ford chassis, choosing the right platform directly affects your legal payload, your crane capacity options, and your compliance with Texas weight laws.
Star Truck Equipment in Wharton, TX installs crane bodies on both platforms. Here’s how they compare for real crane work.
F-550 vs F-600: Key Spec Differences
| Spec | Ford F-550 Super Duty | Ford F-600 Super Duty |
|---|---|---|
| GVWR | Up to 19,500 lbs | Up to 22,000 lbs |
| Max Payload | ~7,640 lbs | ~10,600 lbs (est.) |
| Rear Axle | Dana 110 | Dana S130 (heavier) |
| Frame | High-strength steel | Uprated high-strength steel |
| Engine Options | 7.3L gas / 6.7L diesel | 7.3L gas / 6.7L diesel |
| Weight Class | Class 5 | Class 6 |
The F-600’s higher GVWR is the headline difference. That additional payload capacity gives you critical headroom when mounting a heavy crane body with boom, toolboxes, and compressor while still hauling a full tool and parts load.
Cab-to-Axle (CA) Lengths for Crane Fitment
| Configuration | F-550 CA | F-600 CA |
|---|---|---|
| Regular Cab | 60″ / 84″ | 84″ common |
| Crew Cab | 60″ / 84″ | 84″ / 108″ available |
| Optimal Crane Body Length | 9–10 ft | 10–12 ft |
For crane body upfits, a longer CA is preferable — it allows a longer body that distributes the crane’s weight more evenly over the frame. On the F-550, an 84″ CA with a 9-foot crane body is the practical limit. The F-600’s 108″ CA option opens the door to 11-foot and 12-foot crane body configurations more typical of full-service utility trucks.
Why Payload Matters for Crane Body Work
A fully outfitted crane body is heavy before you load a single tool or part. Here’s a typical weight breakdown on an F-550 crane body setup:
- Crane body (9 ft, steel): 1,800–2,200 lbs
- Truck-mounted crane (3-ton): 1,800–2,400 lbs
- Air compressor and tools: 400–600 lbs
- Parts and consumables load: 1,000–2,000 lbs
- Total added weight: 5,000–7,200 lbs
On an F-550 with ~7,640 lbs max payload, that’s cutting it close. On an F-600 with ~10,600 lbs payload, you have comfortable headroom — especially important for oilfield and utility applications where you’re constantly loading heavy equipment.
Recommended Crane Body Options
For F-550 crane body builds, we typically recommend:
- RKI Crane Bodies — Built in Houston, TX. Excellent fit for 9-foot F-550 configurations
- CM Service/Crane Bodies — Versatile, well-priced for most contractor applications
For F-600 crane body builds where payload headroom is the priority:
- STI Crane Bodies — Heavy-duty construction for demanding oilfield and utility environments
- Tiger Crane Bodies — Truck-mounted cranes up to 10 tons; F-600 provides the GVWR to mount mid-range cranes without overloading
Our Recommendation
If you’re doing light to medium crane work — 3-ton cranes, 9-foot body, moderate tool loads — the F-550 with an 84″ CA is cost-effective and widely available. If you’re running a 5-ton or larger crane, carrying heavy tool inventory, or need the legal payload cushion for Texas DOT compliance, step up to the F-600. The added upfront cost is typically justified after one overweight ticket avoided.
Crane Body Installation in Wharton, TX
Star Truck Equipment installs crane bodies on Ford F-550 and F-600 chassis cabs for Texas and Louisiana fleets. We’ll help you spec the right body for your chassis, crane, and work requirements before you order your truck.
Call (979) 532-1486 or visit us at 2507 County Rd 231, Wharton, TX 77488. Browse our crane body inventory and service body options.