CHRYSLER'S A-833 4-SPEED TRANSMISSION

It is of utmost importance that you determine which year of production and which version of transmission you have. Several large components and many small parts are no longer available as service parts. Some parts are not interchangeable from year-to-year due to modifications and updates. Most cars have had transmissions, clutches and shift components removed, swapped or modified over the years, so you may not have the original transmission in your car.

The Chrysler 4-speed was introduced during the fall of 1963 for the introduction of the 1964 models, and has since been produced in several different versions with various updates and modifications.

The A-833 operates basically the same regardless of model or application. It was available in two different lengths; A/F body (short) and B/E body (long). Both coarse and fine pitch gears were used along with four different production ratios. From an interchangeability standpoint there are basically three versions: small spline, large spline and overdrive. The small spline was used in all body styles and with all engines except 440 and 426 Hemi (which used the large splines). The overdrive version was introduced in 1975.

All small spline drive pinions (input shaft) have 23 splines, while large spline pinions have 18 splines. Clutches used with each style drive pinion must have the corresponding number of splines.
There are also three drive pinion bearing retainer pilot sizes that serve as a basis for identifying transmissions. The pinion bearing retainer is the cast piece bolted to the front of the transmission that fits into the round hole in the rear of the bellhousing.

Check the following table to identify the retainer size and corresponding drive pinion bearing in your transmission.

IF PERFORMING YOUR OWN MECHANICAL WORK, WE HIGHLY RECOMMEND THE PURCHASE OF A FACTORY SERVICE MANUAL FOR YOUR CAR.

FRONT BEARING RETAINER DIMENSIONS