I have the Bend Pak unit. I bought it about 15 years ago for use with my '68 Coronet R/T. Still have and use it. Trans removal and center exhaust can be challenging. I have 2x10's I drive up on to clear the trans pans (deep) on both cars. I did however remove the lower rafters in the ceiling and move them up for clearance. The new opening was double rimmed for strength (paid to have a builder in the family). It can be moved easily and mine is dual voltage capable but I never switched from 110v.At full lift I can easily swing around on a roller seat underneath. It was great for bodywork.The pics should show the expected access. The blue car is the Coronet,Gold and rear axle are the Barracuda