How is preload adjusted?
There are basically two principal methods to adjust preload: individual adjustment and collective adjustment. With individual adjustment, each bearing arrangement is adjusted separately using nuts, shims, spacer sleeves, crush sleeves, etc.
How important is pinion preload?
A slight preload bearing setting assures that proper gear tooth contact is maintained between the pinion and ring gear. This minimizes gear wear and extends the tooth life of both gears. Debris in the axle system is reduced when gear wear is minimized.
What is pinion depth setting?
Pinion Depth – The distance from the face of the pinion gear to the centerline of the ring gear. This is adjusted by adding or subtracting shims to the inner pinion bearing.
What is pinion preload?
Pinion bearing preload is the tension placed on the pinion gear’s tapered bearings. A collapsible spacer is used to obtain the specified amount of pressure or preload. This spacer is placed between the bearings. Turning the pinion gear nut crushes the spacer to obtain the specified preload.
Do you preload ball bearings?
Ball bearings. All radial ball bearings that require a preload must be loaded axially. When an axial load is applied to the inner ring of the bearing, the race of the inner ring comes in contact with the rolling element and translates this load to the raceway of the outer ring.
What size is a 10 bolt rear end on a Chevy?
Although the 7.5-inch 10-bolt closely resembles the 8.5-inch housing, you can positively identify the Chevy 7.5-inch rearend by measuring it. The oval-shaped cover measures 8 5/16 inches by 10 9/16 inches.
What year did GM start using 10-bolt axles?
First appearing in the 1970 as a corporate replacement for the 10-bolt 8.2-inch or the 12-bolt 8.875-inch, the 8.5-inch 10-bolt was used in many different models by every GM division, with the exception of Cadillac, during the 1970s.
What is a 10-bolt bolt used in cars?
The 8.5-inch 10-bolt was used in cars and trucks over a wide range of years. First appearing in the 1970 as a corporate replacement for the 10-bolt 8.2-inch or the 12-bolt 8.875-inch, the 8.5-inch 10-bolt was used in many different models by every GM division, with the exception of Cadillac, during the 1970s.
What size is the pinion nut on a 10 bolt?
The 8.2-inch 10-bolt has a smooth, round, lower-case area (no cast-in protrusions), with an 11-inch cover that has a diagonal protrusion at the top. It also uses a 10 5/8-inch irregular-shaped cover. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use.