Читать книгу Chrysler A-833 Transmissions - Jamie Passon - Страница 6

INTRODUCTION

Chrysler’s A-833 4-speed transmission was manufactured from 1964 until 1986. It went through several design changes and upgrades throughout its extensive manufacturing run. A mid-1980s version was even offered in both two-wheel drive and four-wheel drive. This GM iteration was commonly known as the MY6; Chrysler never offered it as a four-wheel drive transmission. I will focus on the original Chrysler version of this transmission. New Process Gear in Syracuse, New York, (which Chrysler had purchased in 1934) manufactured all of the A-833 manual transmissions that Chrysler offered.

The A-833 was built in two versions: standard duty and heavy duty. The standard-duty unit used a 1-inch-diameter 23-spline input shaft. The heavy-duty version used a 1-inch-diameter 18-spline input shaft. Along with this larger-diameter input shaft, the internal speed gears (mainshaft) used bushed gear bores to prevent seizure to the mainshaft. This design worked well; I have never had an 18-spline gear seized to the mainshaft. However, I have had a number of 23-spline transmissions with this issue through the years.

Chapter 1 focuses on the different component and design changes throughout the production run of the A-833 to provide a detailed explanation of how the A-833 evolved. It also describes the different gearsets, synchronizer designs, component changes, and how the unit has improved through the years.

Chapter 2 outlines the basics of function in the A-833, some of which are exclusive to this gearbox design. It explains how the external and internal parts work together to transmit power through the unit. It also identifies the most common ailments of the A-833 and provides the common remedies for these problems.

I describe how to identify the A-833 transmission in Chapter 3. This chapter offers complete casting number information for all main components and lists the vehicles that these different components fit. Also included is date code information for the different components. In addition, it provides a detailed description of the various fasteners that were used during the production of the A-833 transmission. Finally, the VIN pad stampings are explained.

In Chapter 4, I dig into the actual rebuilding of the A-833 transmission. I begin with tips on creating a clean, efficient work area and explain what tools are needed to accomplish the actual rebuild job. Each section of the transmission is detailed: disassembly, cleaning, inspection, and reconditioning. The final section is reassembly.

I delve into different performance upgrades that are available for the A-833 transmission in Chapter 5. These range from lightweight housing parts to gears of different materials and different gear ratios. I also explain different synchronizer designs for improved performance.

Chapter 6 breaks down all aspects of the shifters that were used on the A-833 from the beginning until the end of production. It describes the various shifter handles, the vehicles in which they were used, and the years. It also covers the different shifter linkage rods and the shifter mount pads, providing the specifics of what types of vehicles and years they fit.

Finally, Chapter 7 identifies the bellhousings that were used from 1964 through the end of production. It provides the details for each bellhousing regarding which engine and vehicle it fits. In addition, it separates small-block from big-block. It also covers the different materials from which these bellhousings were constructed.

Writing this has been quite a journey. It is, without a doubt, the most difficult thing that I have ever undertaken on a professional level and I have learned an incredible amount. One thing for sure is that when you think that you know everything about a subject, you don’t! I hope that the readers use this book to keep these transmissions working properly and thereby continue the hobby of restoring the old vehicles so that they can be driven and enjoyed. You’ll feel a tremendous sense of pride when you grab second gear knowing that you brought that A-833 back to life with your own two hands!