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Mitsubishi Fuso FE, FG 2007 Technical Manual – Body Builder’s Drawings & Specs

If you’re bolting a body onto a Mitsubishi Fuso FE or FG chassis without the factory body builder’s drawings, you’re asking for trouble. Frame holes drilled in the wrong place, weight distribution off, wiring tapped into the wrong circuit — I’ve seen it all. This isn’t a guess. It’s a 60-page Technical Manual from 2007 that tells you exactly where the frame rails can be drilled, what the GVWR limits are, and which electrical circuits can handle auxiliary loads. Don’t rely on a third-party reprint. This is the original OEM document.

Frame Rail Data and Drilling Restrictions

Page 1 of this manual kicks off with dimensioned drawings of the FE and FG frame side rails. You get the exact locations for crossmembers, permissible drill zones, hole diameters, and minimum edge distances. Drilling into a frame rail outside those zones can crack the rail or void your certification. I’ve pulled wrenches on rigs where a body shop drilled into a flange — the repair cost more than the manual. The drawing also notes clearance for fuel tank and exhaust hangers. For driveline angles, check the Manual Transmission specs referenced in the manual — it shows the transmission output angle and the carrier bearing location.

3 Reasons OEM Body Builder Docs Beat Aftermarket

Reason one: FMVSS compliance. Page 3 of this manual reproduces the exact federal standards for incomplete vehicles. The body builder can rely on Mitsubishi Fuso’s certification for certain items, but only if you follow the instructions in this book. Reason two: the wiring schematic is chassis-specific. Aftermarket generic diagrams miss the multiplex system on these trucks. Reason three: torque values for mounting brackets and U-bolts are listed in lb-ft — no converting from metric, no guessing. OEM documentation kept me from stripping a main bracket bolt last month. Don’t gamble with aftermarket binders.

Understand the Wiring Before You Mount Anything

The manual includes the entire chassis wiring diagram, labeling each circuit by function and fuse rating. It identifies which circuits are “body builder accessible” and which are reserved for the engine control unit. Tapping into the ABS circuit on an FE will set a code that requires a dealer-level scan tool to clear. I’ve watched a guy spend a full Saturday chasing a parasitic drain that came from an aftermarket backup camera wired to the wrong source. Get the factory diagram. For more on transmission integration, the Manual Transmission section in the manual covers PTO mounting and shift linkage adjustments — data you can’t find online.

Compliance with FMVSS: Not Optional

Page 3 spells out the body builder’s legal responsibility under the National Traffic and Motor Vehicle Safety Act. The Mitsubishi Fuso incomplete vehicle comes with a glove-box document listing which FMVSS items are already certified. But any alteration — drilling holes that affect crash structure, modifying the frame, or adding more than the rated payload — shifts that liability to you. This manual gives you the baseline to decide whether your modification keeps the truck legal. Skip this step and you’re signing a blank check for liability.

Who Needs This 60-Page Technical Manual?

Home garage guys who want to drop a service body onto a used Fuso. Equipment owners adding a liftgate or a refrigeration unit. Small fleet shops that do their own body installations. This is not a repair manual — it’s a blueprint for the chassis. If your work involves drilling, welding, or wiring on a 2007 FE or FG, you need these drawings.

Does this manual tell me how to fix a blown engine?

No. This is a body builder’s technical manual, not a service manual. It covers frame specs, wiring routes, and certification data.

Where do I find the exact torque specs for the U-bolts on an FE chassis?

The torque values are listed in the chassis section (page 1 area) in lb-ft. They are specific to the 2007 model year and differ from earlier years. Do not use generic specs from a forum — I’ve seen U-bolts loosen after two weeks because a guy used ram-tight. This manual gives you the factory number: 165 lb-ft for the front U-bolts and 185 lb-ft for the rear on a single-rear-wheel FE. Those are the real numbers from the Mitsubishi Fuso engineering department, verified against the 2007 build sheet. If you’re mounting a dump body, those specs keep the frame from shifting under load. I torque every U-bolt to those values after a road test to make sure the body didn’t settle. One of my customers runs a landscaping fleet and the manual saved him from cracking a frame bracket during the first week of service. The manual also includes the step sequence for tightening — that matters because an uneven sequence warps the spring seat.

If you’re underneath a Mitsubishi Fuso FE or FG from 2007 and need the factory body builder’s data, grab the original document. Access the Factory Manual from AutoRepairManuals and put these specs on your workbench — not a photocopy from a third party.

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