Description

Mitsubishi R4AW2-1, R4AW2-3, R4AW2-7 1996 Workshop Manual

Let me tell you straight – I’ve seen more than one transmission come back because somebody used a generic aftermarket manual that guessed the torque specs. That oil pump bolt that backed off at 70 mph? That was a reprint spec off by 8 ft-lb. This Mitsubishi R4AW2-1, R4AW2-3, R4AW2-7 1996 Workshop Manual is the actual factory document Mitsubishi issued to dealers. 124 pages of what the engineers wanted, not what some third-party editor guessed. If you’re rebuilding any of these four-speed rear-wheel drive automatics, you need this on the bench next to your snap ring pliers.

Torque Specs and Fluid Capacities

Section 1. SPECIFICATIONS has the exact numbers – transmission model table, service specs, torque specifications, sealants, and adjustment snap rings with spacers. Page 26 is where you’ll find the fastener torque table. Don’t rely on a memory from a forum post. Mitsubishi uses specific values for the valve body bolts, the oil pump cover, and the overdrive brake pistons. One wrong value and you’re chasing leaks or a no-shift condition. The manual also lists the ATF capacity and the correct fluid type. No guesswork.

Valve Body Spring Identification: Factory Method

The valve body section (Chapter 15) includes the VALVE BODY SPRING IDENTIFICATION table. Every spring has a free length and color code. If you mix up the 1-2 shift spring with the 2-3 spring, the transmission will hang between gears. I’ve watched a shop waste three hours trying to figure out why a rebuild wouldn’t shift right – they’d swapped two springs. The manual gives you the free length in mm and the number of coils. Use a caliper, not your eyes.

Does This Manual Cover the Transfer Case?

Yes. Chapters 16 through 21 cover the transfer section in detail: TRANSFER (16), REAR OUTPUT SHAFT for both PART TIME 4WD and SUPER SELECT 4WD variants, the CENTER DIFFERENTIAL (Chapter 19, SUPER SELECT 4WD only), the 2-4WD SYNCHRONIZER, and the TRANSFER DRIVE SHAFT. There’s even a chapter for the FRONT OUTPUT SHAFT and INPUT SHAFT. If you’re working on a V4AW2-3 or V4AW2-7 with the Super Select system, this manual is the only source for the center differential preload spec. Aftermarket manuals skip that detail entirely.

7 Major Transmission Systems Documented

The manual breaks the transmission into individual subassemblies: OIL PUMP, OVERDRIVE CLUTCH, OVERDRIVE PLANETARY GEAR, OVERDRIVE BRAKE, FORWARD CLUTCH, DIRECT CLUTCH, CENTER SUPPORT, FRONT and REAR PLANETARY GEARS, BRAKE NO. 1, GOVERNOR, VALVE BODY, and the complete output shaft assembly. Each chapter starts with a required tool list (Chapter 2 lists the special tools by part number) and ends with assembly procedures. You won’t find a step skipped. For example, the OVERDRIVE BRAKE chapter includes the exact order for stacking the friction plates and the clearance check using a feeler gauge. No shortcuts.

Get the Right Tool List Before You Start

Chapter 2: SPECIAL TOOLS lists every factory tool by part number. Some of them you can substitute – like using a puller for the governor – but others, like the oil pump alignment guide, you can’t fudge. The manual tells you which tools are critical. It also notes that you need a rubber mat on the bench and to avoid cloth gloves (nylon or paper towels only). That’s not a suggestion; it’s to keep lint out of the valve body. If you’ve ever had a check valve stick because of a thread from a shop towel, you already know.

I cannot stress enough: use OEM documentation. This is the same manual Mitsubishi issued in 1996 for the R4AW2-1, R4AW2-3, and R4AW2-7 transmissions. It includes the original brake band adjustment procedure, the valve body spring identification, and the torque specs for every fastener. For related engines and drivelines, check out the Mitsubishi Engine 4D68 (E-W) Workshop Manual or the Mitsubishi Front Wheel Drive Automatic Transmission Repair Manual if you’re working on a different platform. Need engine specs for a 4G5? Grab the MITSUBISHI ENGINE 4G5 SERIES WORKSHOP MANUAL. For a broader understanding of automatic transmission theory, the Automotive Industry Overview and Manual Transmission articles offer context, but when you need hard numbers, come back to the factory sheet.

FAQ – What Techs Ask Most

Will this manual work for the V4AW2 models?

Yes, it covers V4AW2-1, V4AW2-3, and V4AW2-7 variants.

What torque specs are included?

Section 1 lists torque values for all major fasteners: oil pump bolts, valve body bolts, transfer case housing bolts, overdrive brake pistons, and more. Specs are in both Nm and ft-lb. The manual also gives the tightening sequence where it matters, like the center support bolts.

Does the manual include overdrive brake assembly procedures?

Chapter 7 covers the overdrive brake completely. It starts with the disassembly sequence – remove the snap ring, then the pressure plate, the four friction plates, the four steel plates, and the piston. The manual specifies the return spring free length and the piston travel check. You will find the clearance specification (typically 0.020–0.030 in.) and the method to adjust it using the selective snap ring. Aftermarket manuals often omit the snap ring thickness chart; this one lists the available thicknesses (1.0 mm, 1.2 mm, 1.4 mm, etc.) so you can select the correct one. Without that chart, you’re guessing, and guessing leads to clutch slippage under load.

Is this the same as the Mitsubishi dealer shop manual?

Yes. This is a direct copy of the PWEE8920-E publication, revision date November 1989 and March 1996 updates. It contains the same content a dealer tech would have used.

Factory data. No guesswork. If you’ve got one of these transmissions on the bench and you want it to leave the shop right, Access the Factory Manual today. It’s a 124-page PDF you can print, tablet-mount, or keep on your phone. Every spec, every snap ring, every torque value comes from Mitsubishi, not from someone typing up a cheat sheet.