SteelHeadz
Super Moderator
The 194 RBI either has the Trac- lok differential or the standard diff.One more
Does the 98 TJ have an open differential, or limited slip? An open diff. allows the slipping wheels to continue spinning because the power is to them correct?
194 RBI AXLE
The 194 Rear Beam-design Iron (RBI) axle housing has an iron center casting (differential housing) with axle shaft tubes extending from either side. The tubes are pressed into and welded to the differential housing to form a one-piece axle housing.
The integral type, hypoid gear design, housing has the centerline of the pinion set below the centerline of the ring gear.
The axle has a vent hose to relieve internal pressure caused by lubricant vaporization and internal expansion.
The axles are equipped with semi - floating axle shafts, meaning that loads are supported by the axle shaft and bearings. The axle shafts are retained by C - clips in the differential side gears.
The cover provides a means for servicing the differential without removing the axle.
For vehicles equipped with ABS brakes, the axles have a tone ring pressed onto the axle shaft. Use care when removing axle shafts to ensure that the tone wheel or the wheel speed sensor are not damaged.
The 194 RBI axle has the assembly part number and gear ratio listed on a tag. The tag is attached to the differential housing by a cover bolt. Build date identification codes are stamped on the cover side of an axle shaft tube.
The differential case is a one-piece design. The differential pinion mate shaft is retained with a threaded pin. Differential bearing preload and ring gear backlash is adjusted by the use of selective spacer shims. Pinion bearing preload is set and maintained by the use of a collapsible spacer Shim Locations
TRAC-LOK OPERATION
In a conventional differential, if one wheel spins, the opposite wheel will generate only as much torque as the spinning wheel.
In the Trac-lok differential, part of the ring gear torque is transmitted through clutch packs which contain multiple discs. The clutches will have radial grooves on the plates, and concentric grooves on the discs or bonded fiber material that is smooth in appearance.
In operation, the Trac-lok clutches are engaged by two concurrent forces. The first being the preload force exerted through Belleville spring washers within the clutch packs. The second is the separating forces generated by the side gears as torque is applied through the ring gear Trac-lok Limited Slip Differential Operation
The Trac-lok design provides the differential action needed for turning corners and for driving straight ahead during periods of unequal traction. When one wheel looses traction, the clutch packs transfer additional torque to the wheel having the most traction. Trac-lok differentials resist wheel spin on bumpy roads and provide more pulling power when one wheel looses traction. Pulling power is provided continuously until both wheels loose traction. If both wheels slip due to unequal traction, Trac-lok operation is normal. In extreme cases of differences of traction, the wheel with the least traction may spin.
