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All Models except Diesel and Turbo

WARNING: This page is about a different car, the 2006 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Unequal Length Halfshaft System
GC0022709Courtesy of DAIMLERCHRYSLER CORP.
1 - STUB AXLE 8 - OUTER CV JOINT
2 - OUTER CV JOINT 9 - RIGHT HALFSHAFT
3 - OUTER CV JOINT BOOT 10 - INNER TRIPOD JOINT BOOT
4 - TUNED RUBBER DAMPER WEIGHT 11 - INNER TRIPOD JOINT
5 - INTERCONNECTING SHAFT - RH 12 - INNER TRIPOD JOINT
6 - OUTER C/V JOINT BOOT 13 - INNER TRIPOD JOINT BOOT
7 - STUB AXLE 14 - INTERCONNECTING SHAFT - LH

1.6/2.4L naturally aspirated models equipped with either an automatic or manual transmission use an unequal-length halfshaft system. The system incorporates two halfshaft assemblies (left and right) that consist of an inner and outer constant velocity (CV) joint and a solid interconnecting shaft (5, 14). See Fig 1. The right halfshaft is longer than the left due to transaxle packaging and powertrain design.

Halfshafts used on both the right and left sides of the vehicle use a tuned rubber damper weight (4) mounted to the interconnecting shaft (5,14). The damper weight applications vary by which side of the vehicle the halfshaft is located on and the transmission application of the vehicle. When replacing a halfshaft, be sure the replacement halfshaft has the same damper weight as the original.