Heavy Metal is a knock off Rock Krawler. Speaking from experience skip the budget boosts and go with OME or Superlift. I had the RRO lift for 2 months then switch to OME because of how awful it handled.
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2007 WK Laredo
OME HD / Bilsteins / RRO UCA / Toyo AT2 on Moabs / Volant / Viper TB / Powerwire / TB Ground / Sprint Booster / JKS Rear Discos / Asfir Skid / Apsen Creek Skid / Front Shackles / Rear Sliders / Cobra CB / S4xC Antenna Mount w/ 2' Firestix