TM4400 Shop Manual Dana Axle Pinion & Differential Bearing Service

TM4400 Pinion & Differential Bearing Service on Dana-Spicer Monobeam Axles. When hard working Dana-Spicer drive axles exceed 125,000-150,000 driving miles, it is time to perform a re-bearing job on the pinion and differential bearings. Covers step-by-step service procedures for performing a complete pinion and differential rebearing job on Dana Model 30, 35, 44, 50, 60, 70, 70HD, and 80 solid drive axles. Includes over 75 Color Photographs, Torque Charts, and Tool Recommendations! Fold-flat, 26 page, 8 1/2" x 11" printed publication with plastic covers.

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Dan the Gear Man® Tech Notes:
Additional Service Manuals
Service Procedure
Applications

Tech Note 1: Additional Service Manuals
Excursion and 1999-2004 Super Duty 4x4 Front Inner Axle Seal Service Procedures are also covered in our TM4637 and TM4688 Axle Service Manuals that also provide detailed coverage of other front axle service procedures and contain color exploded views of your Excursion or Super Duty® Front Axle.

Tech Note 2:  Service Procedure
With today's longer lasting and more powerful 4x4 trucks and SUV's, having to replace your differential and pinion bearings is becoming an expected service procedure around the midpoint of a vehicle's life cycle. Back in the 1960's and 70's, most trucks were worn out and sent to the bone yard long before they came anywhere close to 150,000 miles because most engines of that carbureted era would be crying for a rebuild at 100,000 miles and/or the body would be rust rotted. With the advent of galvanized body panels and well designed diesel and fuel injected gas engines in the late 1980's, vehicle and engine life was doubled, tripled, or even quadrupled. So now, with decent maintenance, you can expect to rebuild or replace every other part in the drivetrain before the engine goes or the body falls apart. Axles are still built to 1950's design specifications. No rear axle, in any newer hard working truck through 1 ton class, can be expected to run the life of the engine without a complete rear bearing job. Replacing the diff and pinion bearings in Dana-Spicer axles is not all that difficult, but it does take good mechanical skills and access to at least some special tools. TM4400 Manual shows you how do to the job right the first time. TM4400 Pinion & Differential Bearing Service Printed and Spiral Bound with Clear Plastic Covers.

Applications:  
All Dana Spicer Iron Beam Model 30, 35, 44, 50, 60, 61, 70, 70HD, and 80 Front or Rear Drive Axles