Cab Mount bolt removal problem

[dmw319]

So I was trying to change my cab mounts and from what I have read/seen, the front bolts go in from the top down and the back mounts go in from the bottom up. My front mounts look doable... but when I look at the back mounts, they literally look like pointed spears. Anyone seen this before or have any idea how I could remove them to replace the mounts? I have the kit from GMC Pauls.

Here are pics:

https://savedalone.files.wordpress.c.../08/mount1.jpg

https://savedalone.files.wordpress.c.../08/mount2.jpg


Thanks!