Slapper bars typically have to be modified to use on Mopar's effectively. That involves cutting half the rubber snubber off, and the positioning it directly under the front spring eye.
I had to cut and weld them to get them properly adjusted. Once positioned correctly, They make a huge difference to the traction the cars have. It's night and day actually. I painted mine matt black, so I don't have to hear from people who say they don't work on Mopars. LOL!
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