Coilover question need help!

So recently i just bought new 2.5 sway away coilovers and total chaos uca's. The uca's went in fine and the coilovers are assembled but the only thing is the stock lower shock bolt will not fit through the bottom part of the coilover. There is probably a simple fix but should i buy new heim spacers and grade 8 bolts? And would it matter if theres play due to the stock holes and bolt? Please any help would be great and thanks again! Still new to this stuff! Mainly looking for help from someone else who has done this same set up!

 

I wouldn't feel comfortable with a bolt having play....that's like the most of the weight of your truck slamming down on that one spot. As for a fix I'm sure someone who has the same set up can help also better see some pics when its done