The cylinder is bolt on. The reinforcement kit uses self tapping sheet metal screws and it's all done from underneath.
Except - in my case the cab sheet metal was already starting to wrinkle and deflect and I had to use a porta-power and some massaging from above - drilled a hole in the floor in front of the passenger seat to use a brass punch on some of the pushed-in sheet metal. I'll find my pics here in a bit.
I haven't got to installing the forward plates yet. The damage from the air pump bouncing the cab as it lifts was all on that rearward outer bracket and the floor where it's spot welded that was really being fornicated.
The forces involved are doing this to the sheet metal and the air operated pump action causes the cab to bounce and any additional cab weight in it is being hammered into this wimpy sheet metal mounting point. The Steyr cab was designed to be a lightweight balanced manual tilt not to be lifted with a ram like this. Especially not with the armor they started adding with the LSAC, and the field expedient armor being added by troops. It just broke them. I guess engineering didn't think that through very well.
My truck never had a weapons system or anything so IDK if the troops loaded her up and that caused it or what. The HIMARS hatch is aluminum and probably 150-175 lbs or so..... Can't be more than a roof rack full of boxes of gear though and certainly isn't more than the roof can support based on the stencils for weight they used above the doors. So IDK. But the kit is well worth getting while they are available. They were $225 a minute ago but now that I have told a bunch of people the demand went up and the prices have followed.
