Tech Center

New Redesigned 40K Tandem Carriers
Affected Models: All D404, DSP40, DSH40 (Includes Diff Lock and Pump option models)

DS404/DSP40/DSH40 Series
This document helps you identify your unit using easy landmarks. DSH / RSH FLANGE
This Image shows how to identify between thick and thin flange cases on DSP-DSH / RSP-RSH differentials RD20 145
This document helps you identify your unit using easy landmarks. RD23 160
This document helps you identify your unit using easy landmarks. RD404 Series
This document helps you identify your unit using easy landmarks. RR20 145
This document helps you identify your unit using easy landmarks.

Axle Shaft Identification Differential Installation Guide New Front Axle Layout Guide
This guide can aide you in laying out your front axle assembly. Road Ranger Torque Specifications Transmission Installation Guide

Road Speed Calculator
This calculator can aide in determining top speeds for various axle ratios.

AK10
10 Speed models and 07L 08 08L 09 AK13
All 13 Speed Models AK15
07LL, 08LL and All 15 Speed including 14600 and 15600 Models AK157
Basic Air System Drawings 2+2 Style Knob for 707LL, 7/908LL and 7 and 9 Series 15 Speed Models AK18
All 18 Speed Models AK210C
FR / FRO Series AK6613
6613 7608LL 2+2 System Bell Housing Identification
FRO Identification Fuller Cover Identification Fuller Transmission Identification Meritor Transmission Identification Shift Bar Hsg
Forward and standard shift locations

Pederson Bros. Kits
Parts Catalog for Perderson Fenders

Transmission Gear Wear Explained
Understanding Gear Wear and Failures. Troubleshooting Heavy Duty Transmissions
Trouble shooting guide for Fuller heavy duty transmissions (October 2007).