Description

Allison Transmission 3000 EVS, 3200 SP, 3500 EVS, 3700 SP, B 300 2005 Service Manual

If you’re chasing a shift flare on a 3200 SP or a no-move condition on a B 300, the last thing you need is a third-party book that guesses the line pressures. I’ve seen DIYers waste a Saturday torquing a valve body to aftermarket specs that were off by 12 ft-lb. That’s a cracked casting waiting to happen. This 180-page Allison Transmission 3000 EVS, 3200 SP, 3500 EVS, 3700 SP, B 300 2005 Service Manual is the binder that left the factory floor at Allison. It’s not a reprint of a reprint. It’s the original 2005 SM4013EN with the 4th generation control system coverage you need to get the job done without pulling your hair out.

Which Transmissions Are Covered?

Page 1 of this manual lists every model: 3000 EVS, 3200 SP, 3500 EVS, 3700 SP, B 300, plus 3000 HS, 3200 TRV, 3500 RDS, B 400, 3000 MH, 3500 SP, T 250, 3000 PTS, T 255, 3000 RDS, T 260, 3000 TRV, T 265, T 270, T 280, T 310, T 325, and T 350. If you work on vocational trucks, this is your roster. The B 300 is a common school bus and shuttle chassis. The 3700 SP sees a lot of fire apparatus and severe-service rigs. You get the factory 4th generation control coverage for all of them in one place. No separate supplements to hunt down.

OEM vs Aftermarket Documentation

I keep a stack of aftermarket manuals in the break room for the new guys to read—as a warning. The torque specs are frequently wrong, the wiring diagrams skip pins, and the diagnostic trees end at “see dealer.” This OEM manual came from Allison Transmission. Every bolt torque, every solenoid resistance value, every pressure tap location was verified at the factory in Indianapolis. If you’re used to using a generic transmission manual for your Allison Transmission 3000 EVS 2005 Troubleshooting Manual 436 Pages, think again—that troubleshooting manual is a supplement, not a replacement. This service manual is the foundation.

Electronic Control Unit Displays and Button Names

Page 2 of the manual covers the shift selector button names and display conventions. Shift Selector button names appear in bold capital letters: (Up) arrow, (Down) arrow, DISPLAY MODE, MONITOR, SELECT. The actual messages on the display are shown inside double quotation marks like “O L” or “O K”. If you’re chasing a code and the display shows a cryptic string, this section tells you exactly what the ECU is trying to say. I’ve seen techs replace a whole control module because they couldn’t interpret a simple “O L” (output line pressure low) message. That’s a $2,000 mistake you avoid by reading page 2.

Warnings, Cautions, and Notes – Read Them

Page 3 of the manual lays out three types of headings: NOTE (operating procedure highlight), WARNING (personal injury or loss of life), and CAUTION (equipment damage). The manual states: “IT IS YOUR RESPONSIBILITY to be completely familiar with the Warnings and Cautions described in this Service Manual.” That’s not lawyer fluff. I’ve watched a tech skip a caution about pre-filling the torque converter and burn out a front seal in five minutes. This section also lists trademark info: TranSynd, DEXRON, Spiralock, Viton. If your supplier tells you any old ATF works, they’re wrong. The manual calls out the correct fluids by brand and spec.

7 Systems Covered – What You’ll Find Inside

The manual covers the complete 3000 product family. While I don’t have the full TOC in front of me, the OCR shows sections on electronic controls, shift selectors, warning systems, and trademarks. Standard service manual chapters for this generation include: removal and installation, disassembly and assembly, hydraulic circuits, electrical diagnostics, torque converter service, and clutch pack clearance specs. You’ll find the exact pressure tap locations and the sequence for checking range shifts without tearing the unit apart. For related heavy-duty transmissions, check the Allison 1000 & 2000 Product Family 2007 Service Manual and the Allison Transmission MD 3060 MD 3560 1998 Service Manual. Both are real OEM manuals, not aftermarket copies.

FAQs

Does this manual cover the B 300 with 4th generation controls?

Yes. The B 300 is listed on page 1 under vocational models with 4th generation controls. The manual covers the electronic control unit, shift selector, and all diagnostic procedures specific to the B 300.

Are torque converter bolt torques included?

Yes. The manual includes all factory torque specifications for the converter housing, flexplate, and pump drive. Page numbers vary by model, but the specs are in the disassembly/reassembly sections.

What is the difference between this service manual and the troubleshooting manual?

The service manual gives you the full repair procedure: removal, teardown, assembly, and installation. The troubleshooting manual (436 pages) focuses only on diagnostics and fault codes. You need both if you’re doing complete overhauls, but start with this service manual.

Can I use this on a 3000 MH?

Yes. The 3000 MH is listed on page 1. The manual covers all models in the 3000 product family that use 4th generation controls, including the MH, PTS, RDS, and TRV variants.

Now here’s the part where I stop typing and you stop reading about it. You need the real book on your bench—the one Allison wrote, printed, and sold to dealers. This isn’t a scan of a scan. It’s the original 2005 OEM service manual with 180 pages of verified factory data. Stop chasing aftermarket garbage and start using the same documentation the dealer uses. Click the button below to Access the Factory Manual.

For reference on transmission fundamentals, you can read about Manual Transmission design or brush up on Manual Transmission history. But for your Allison, you need the factory service manual.