Product Details

JR403-E Automatic Transmission TechTran Rebuild Book

• ATSG part number: JR403-E Electromatic
• Book type: Rebuild and overhaul
• Covered models: JR403E, RG4R01E, RG4RO1A JATCO 4 speed automatic
• Makes: Chevrolet, GM, GMC, Isuzu, Nissan UD, and Mitsubishi Fuso, 2-Ton Trucks
• Year range: 1988-1998
• Format: Paperback
• Pages: 120
• Copyright date: 2004
• UPC: 852553006622
• Country of origin: USA

The blue cover JR403E ATSG overhaul manual covers procedures and technical service information for transmission inspection, repair, dis-assembly, assembly, diagnosis, and troubleshooting.

This book contains detailed information regarding the following:

• Bushing locations
• Checkball locations
• Clutch clearance specifications
• Diagnostic trouble codes
• Electrical volt and ohms information
• Endplay check and recommendations
• Exploded views
• Recommended tools list – Not all required
• Control solenoid specifications and locations
• Thrust washer locations
• Torque specifications
• Torrington bearing locations
• Trouble codes and fixes
• Trouble shooting
• Valve body assembly detail for valves and springs
• Much more….

This overhaul rebuild book works for the following Chevrolet, GM, GMC, Isuzu, Mitsubishi Fuso, and Nissan UD applications.

Chevrolet

• W3500 Tiltmaster, I4 diesel, 1988-1998*

GMC

• W3500 Forward, I4 diesel, 1988-1998*
• W4500 Forward, I4 diesel, 1988-1998*

Isuzu

• NPR, I4 diesel, 1988-1998*
• NPR HD, I4 diesel, 1988-1998*

Mitsubishi Fuso

• FE, I4 diesel, 1988-1998*
• FE-HD, I4 diesel, 1988-1998*
• FE-SP, I4 diesel, 1988-1998*
• FG, I4 diesel, 1988-1998*

Nissan UD

• 1200, I4 diesel, 1988-1998*
• 1400, I4 diesel, 1988-1998*

*The JR403E or RG4R01A transmission ended in 1998. However, that year was a cross-over to a different transmission in these applications. If you are unsure about a 1998 model, please contact us for help.

This JATCO transmission is known by multiple names and codes, including: JR403E, RG4R01A, RG4RO1A, and RMK.

This automatic transmission rebuild book covers the following years: 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, and 1998

Automatic Transmission Service Group - ATSG Techtran rebuild manual

ATSG produces the overhaul books that transmission mechanics; both professional and DIY, have looked to since 1985.

Automatic Transmission Service Group (ATSG) is the largest technical support service in the automatic transmission Industry. ATSG manuals are the world's foremost service guides utilized by professionals and technicians to troubleshoot and diagnose problematic areas, disassemble transmissions and reassemble accurately and efficiently. ATSG manuals cover all aspects of transmission care, overhaul and rebuild procedures. Straightforward and simple to use, ATSG manuals will assist professionals and non-professionals alike with all aspects of automotive transmission care.