AXLE RATIO & IDENTIFICATION
To identify vehicle differential ring gear size and drive axle ratio, see DRIVE AXLE RATIO IDENTIFICATION article in the DRIVE AXLES Section.
DESCRIPTION
Front axle assembly on "K" Series models uses an 8 1/4" ring gear for K15/25, or 9 1/4" ring gear for K35. There are minor differences between the 2 assemblies.
Both front axle assemblies have an electric 4WD engage/disengage feature which allows shifting in or out of 4WD while vehicle is in motion (under most conditions). The 4WD feature is "shifted" by a thermal actuator solenoid mounted to right axle tube. (Схема №4)or (Схема №5).
The 4WD thermal actuator solenoid contains a coil, fluid, and plunger. When coil is electrically heated by 4WD in/out switch, the fluid changes to a gas and extends plunger to engage front axle.
Right side of axle assembly consists of a solid axle shaft which rides inside of a stationary axle tube. A short stub shaft with CV joint attached is bolted to right inner axle shaft flange. Left drive axle shaft consists of a flexible drive shaft using an inner tripod joint and outer CV joint. Left axle tripod joint housing bolts to axle carrier output shaft drive flange. CV joint splined/threaded shaft on outer end of drive axle shaft slips through steering knuckle/hub assembly. (Схема №2)
Front axle assembly differential uses a conventional ring and pinion gear set to transmit the driving force of engine to the front wheels. Ring and pinion gear set transfers driving force at a 90-degree angle from front drive shaft to drive axle shafts/CV joints.