Transmission Nut Torque Specifications for Eaton Fuller & Allison Transmissions

Proper fastener torque is essential when installing or servicing heavy-duty transmissions. Using the correct torque specifications helps ensure components are securely fastened and reduces the risk of installation-related problems.

Allied Powertrain Group’s Transmission Nut Torque Specifications Guide provides a convenient reference for output yoke nuts, flange retaining bolts, and other transmission fasteners across a range of Eaton Fuller and Allison transmission models.

Eaton Fuller Transmission Torque Specifications

The guide includes torque specifications for several Eaton Fuller transmission families, including:

  • Eaton FO-18E/20E
  • Fuller AT-1202 / AT1202A
  • Eaton Endurant EEO-16F/17F/18F
  • FRO16210C and RTO16908LL
  • RTLO transmission configurations
  • FS6406A/N and FSO8406A

Specifications cover applicable output yoke nuts, flange nuts, and retaining bolts, with torque values provided in both foot-pounds (ft-lb) and Newton-meters (N-m).

Allison Transmission Torque Specifications

The guide also provides fastener torque references for a variety of Allison transmission applications, including:

  • Allison 1000 and 2000 Series
  • Allison 3000 and 4000 Series
  • Allison MT640, MT643, MT644, and MT647
  • Allison MT650, MT653, and MT654CR
  • Allison B400/B400R and B500/B500R

Depending on the model and configuration, specifications cover output yoke retaining bolts, output flange bolts, rear yoke nuts, and self-locking nuts.

Find the Correct Torque Specification

Torque requirements can vary significantly depending on the transmission model, fastener type, and specific configuration. Identifying the correct application before installation is essential.

The Allied Powertrain Group reference guide organizes specifications by transmission model and fastener location, making it easier for technicians to locate the appropriate torque values.

Download the Transmission Nut Torque Specifications Guide for detailed reference tables covering Eaton Fuller and Allison transmissions.

Always verify specifications against the applicable manufacturer’s service documentation beforeV