1997 Jeep Wrangler TJ 2.5L 5-speed with A/C  Rubicon Express 8" Long Arm Suspension TeraFlex NP231 4.0:1 Low Range Gearing Conversion Dana 30 Front with Detroit EZ-locker, Yukon chrome molly axle shafts with super joints and 4.88 gears Ford 8.8 Rear with Detroit Locker, 31-spline axle shafts and 4.88 gears 37/14.00-15 Bias IROK tires on 32-bolt Allied Bead Locks Warn 9.5ti winch But the most effective modification is putting Momma behind the wheel - because she drives the Jeep like she doesn't have to fix it!!!