1967/1968 Dick Harrell funny cars

I would guess you could try to use the handle to raise and lower the body, but wouldn't you think if that is the purpose of it,there would be one on each side..that way 2 people could do it and lessen the chance for body damage..if one person trys to raise the body, I would think there is a very real chance on torquing the body and cracking it..Also why don't you see other cars with these handles if that is the way to raise and lower the body..even today...I honestly don't think this question is that complicated...