- Suits 2020- BT-50 - All PHAT BARS angled rock sliders are made from 50mm square tube, 4mm thick and 50mm round tube. 3.2mm thick chassis mounts are made using 5mm laser cut and CNC folded plate wrapping the chassis. Cross member mounts are 8mm laser cut plate. Also made to suit 2” body lift 2-3 week fabrication time