Rear axle final drive pinion shaft identification
A - old type shaft with right-hand thread,
B - a new type of shaft with left-hand thread
Rear axle mounting
A - gap between the crankcase lug and the holder plate, B - the upper bolt of the rear mount, C - the lower bolt of the front mount, D - the lower bolt of the rear mount
Rear axle
Main drive gear
Attention! The final drive gear is integral with the shaft. The changes described below relate to the end of this shaft. Since November 1982 (production date code "SA") until July 1983 (production date code "DS") when installing the main gear, a special glue was used, which was applied to the threads as an additional means of preventing the nut of the main gear shaft output from unscrewing.
Since August 1983 (production date code "DT") a change has been introduced in the design of the shaft neck of the main gear drive gear and its nut. Changed the thread on the shaft on the right (old style) to the left (new type drive gears). To facilitate the recognition of old and new types of shafts, a different shape of the notch on the threaded part of the shaft is used (see fig. Rear axle final drive pinion shaft identification).
The method of marking the rear axle housing has also been changed, which instead of a riveted plate is knocked out directly on the rear axle housing.
Attention! If it is necessary to unscrew the final drive gear shaft nut during installation, be sure to use a new nut.
Attention! If an old style nut is used (with right hand thread), then it must be secured against unscrewing with a special adhesive provided for this purpose.
Attention! After tightening the nut, additionally secure it against unscrewing by caulking. This applies to nuts of both old and new types. Rear axle mounting
Since September 1984 (production date code "EL") to eliminate the gap (A) (see fig. Rear axle mounting), which can form between the bosses of the bridge and the fastening elements to the holder plate, and in particular the bolt (IN), U-shaped gaskets are used, located between the tide (left and right) and holder plate. These gaskets have a thickness: 0.5; 1.0 and 1.5 mm. When installing the rear axle, use a spacer thick enough to move with little effort between the elements to be joined.
Since May 1986 (production date code "GJ") the bolts and nuts for fastening the metal-rubber cushions of the rear axle have been changed. A characteristic feature of the new bolts and nuts is their golden color.
If the rear axle is removed, a new type of bolts and nuts must be used for all axles.
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