Description

Kenworth T470 Technical Manual

I’ve seen too many body builders drill into a frame rail without checking the OEM specs. Then they wonder why the suspension doesn’t align or the FMVSS compliance goes out the window. The Kenworth T470 Technical Manual is the 110-page document that stops that guesswork cold. This is the same book Kenworth gives their own chassis prep guys – not a reprint from some third-party that fudged the numbers.

Every page is straight from the OEM. Section 2 drills you on safety signals and federal motor vehicle safety standards compliance. If you’re mounting a body, tank, or any equipment on a T470, you need those compliance specs. Section 3 hands you dimensions: overall length, wheelbase, axle track, turning radius, ride heights. These aren’t rounded estimates – they’re factory measurements in imperial units.

Section 3: Dimensions – The Numbers That Matter

You’re not going to find a more accurate set of dimensional data anywhere else. The manual breaks down the T470 straight hood and extended day cab separately – different frame lengths, different cab-to-axle dimensions. It lists the turning radius for each wheelbase combination. And it gives you the axle track and tire width for the front and rear axles. That matters when you’re welding on brackets or routing air lines. Miss that by a half inch and you’re cutting welds and reordering parts.

The suspension layouts on pages 3-10 through 3-18 cover every rear suspension option: Reyco 79KB single, Reyco 102 tandem, Neway AD 123 single, Neway AD 246 tandem, Neway AD 369 tridem, and Hendrickson Primaax and HMX tandems. Each layout shows the frame rail hole pattern, hanger locations, and torque specs for the U-bolts. Those torque values are critical – the manual gives them in lb-ft, not some vague “tighten securely” nonsense.

Safety and Compliance – FMVSS and What It Means for Your Build

Section 2 is short but mandatory. It covers the safety signals used throughout the manual and explains federal certification. If you’re modifying the chassis – cutting, drilling, adding weight – you need to understand what voids the FMVSS compliance. The manual spells it out in plain language. Skip this section and you could be liable for an unsafe truck on the road. That’s not a risk any shop should take.

Why This Manual Is Not a Service Manual

This is a Body Builder Manual, not a service manual. It doesn’t tell you how to rebuild the engine or overhaul the transmission. It gives you the vehicle layout dimensions, suspension types, and compliance data that body shops and upfitters need. If you’re looking for engine torque specs or wiring diagrams, you want the Kenworth T800 W900S W900B 2006 Technical Manual Kenworth T800 W900S W900B 2006 Technical Manual or the Kenworth P94 Electrical Schematic – OEM Factory Diff Lock Wiring Kenworth P94 Electrical Schematic – OEM Factory Diff Lock Wiring | AutoRepairMan. For the T470’s siblings, the Kenworth T170,T270,T370 2011 Installation Manual – OEM Specs Kenworth T170,T270,T370 2011 Installation Manual – OEM Specs covers similar chassis dimensions.

The T470 can be spec’d with a Manual Transmission, and this manual gives you the exact mounting dimensions for the transmission bellhousing crossmember. If you need to understand how a Manual Transmission works, refer to the external source for basics.

OEM vs Aftermarket – The Difference in a 110-Page Document

I’ve been burned by aftermarket manuals that list the wrong wheelbase for a T470 with a 52-inch sleeper. This is original Kenworth factory documentation – no one edited it, no one simplified it, no one cut corners. Every dimension comes from the same CAD files Kenworth uses to build the trucks. You get the exact frame rail section modulus, the exact spring capacity, the exact ride height for each suspension. That’s what you’re paying for: certainty.

A short line: trust this manual, not a forum post.

FAQ – Kenworth T470 Technical Manual

Does the manual include torque specs?

Yes. For all suspension U-bolts, spring hanger bolts, and axle stop brackets. Values are in lb-ft per OEM specifications.

What years are covered?

The manual does not specify a year range in the table of contents. It covers T470 models produced during the manual’s publication cycle. Typically Kenworth body builder manuals apply to a production generation. Contact us if you need year confirmation.

Is this a PDF or physical copy?

Digital access. You get the full 110 pages as a PDF, searchable, printable, and readable on any device.

Can I use this for a T470 with a different cab configuration?

Yes. The manual separately covers the straight hood and the extended day cab. For sleeper models, the manual does not list dimensions – those are typically covered in a separate cab-to-axle supplement. For a full list of compatible configurations, check the dimensional sections for your specific wheelbase and rear suspension.

This manual earned a spot in my personal reference library because it delivers what body builders need: numbers that are correct, layouts that are to scale, and compliance data that keeps you legal. Access the Factory Manual and get those specs on your bench before you make the first cut.