RRC's universal floor & trans tunnel kits are available in steel or aluminum and are perfect for use with RRC tube chassis door car kits. Each kit includes (4) floor panels, (1) 2 piece, roll formed transmission tunnel and (1) driveshaft tunnel. Not included but sold separately is an optional trans brake solenoid cover. All pieces are rolled & bent, some trimming required. Aluminum kits are .040 aluminum and steel kits are .031" steel."