One thing that many people have difficulty with is forming a nice driveshaft tunnel to fit their car. This one in particular will allow your 1949-1954 Chevy to sit flat on the ground and also allow you to fit your stock rear seat with minimal cutting of the seat frame. We made this out of 16 gauge mild steel so that it is easy for everyone to weld to. Save yourself hours and buy this pre-fit tunnel for your Chevy today.