I think there's a good chance that 1 or more of the 3 ramps would SLIDE and then you have a major catastrophe. Also, even if you could get the ramps to reliably stay in place as you apply enough throttle to actually climb them, your mufflers AND truck body would drag on the floor unless you built incredibly long ramps. This would be an accident just waiting to happen.

Jim G

 

Take a 4 x 8 sheet of plywood and mount the ramps to that, one for the front and two for the rear, the the hardest part will be throttle, clutch and brake control. Personnelly i would look at a lift table with side extension.

 

Even with a table lift with side extensions, you would have to be VERY careful when changing the weight distribution of the trike on the lift by removing any heavy part. Most lifts that are not specifically designed for trikes, versus 2-wheelers, have a base that is frankly too narrow to use on a trike, where the 2 rear wheels exert 400 lb EACH onto either the left or right edge of the table.

Jim G