$50
MOPAR Pinion snubber 8.75 8 3/4 ADJUSTABLE for use on Dodge / Plymouth. This is used, but looks to be in better shape than most new ones I've seen. This bolts to the stock mounting holes on the center front of the rear axle and will control the windup / traction.
SHIPPING WILL BE ACTUAL COST DEPENDING ON WHERE YOU ARE LOCATED. Let me know where you are located and I will get you a quote. Most likely in the $5 range for most of the US.