'96 and later Chrysler Corporate rear 8.25 10 bolt changed from 27 spline to 29 spline. The Ring and pinion stayed the same throughout the years into the 2000s... There is a carrier break though.. if you have 2.45s the higher ratio gears will not bolt up to that carrier. look for 96 and older for guts. 3.21 or 3.55s should serve nicely.