1) Potential leaks.
2) Reinforcing the roof to displace the hook weight so the hook does not pull right through or cause long term problems. ie. stress cracks.
The hard top only weighs aboout 150lbs., but lifting all of that weight, without displacing it appropriately, could definately cause major damage to a $1000.00-1500.00 roof.
Worst case secnario, ask a friend for help and reward them with a six pack twice a year.
Just a few thoughts that I hope will help.
I figured I'd set the top on a piece of pipe on the floor and roll it till it is close to balancing to find the c.g.i was thinking the same thing and it will be this summer's little project, but instead of putting a center hook, i will install roof rails. That way the weight distribution problem will be solved.
what i meant by installing the rails is for permanent use, not for finding the CG of the top, just hook the lines straight to it. 4 hooks will be fine.I figured I'd set the top on a piece of pipe on the floor and roll it till it is close to balancing to find the c.g.
I made a lift for my last Jeep and it worked well. I used a Prusiks hitch to adjust the center of gravity, a 3:1 hoist, and a progress capture device made of another Prusiks hitch. Worked well to lift the top off solo.blownki said:Your CG will not be on the roof. It is a bad idea. I can assure you finding the CG by rolling the top on a piece of pipe is not the way to find it. CG is located in 3dimensions. Look at all of the top hoists that are sold on the market and then create your own based on their designs. Those companies spent money to have designers and engineers locate the CG and create a 4-point lift with spreader bars.