here is what I used.
I added some end caps to stop the cab from sliding. It worked great. Embarassed to say this but I think I lifted the cab on and off about 20 times with 2 different cabs......uuuugh!!!! Once you find the center point of the cab, its a snap. I never had any issues of cab sliding or moving around. It made moving the cab around very very easy.
Here is a shot of my mockup cab......junk junk junk
and a shot of my 2nd cab, the good one!!!
