You will need to drill out the upper bushing in the C14 shock to 12mm (if I remember the size correctly) to be able to use the stock C10 bolt. Some have said they used the smaller C14 bolt in the upper mount without any issues.
You will also need a different bushing in the lower mount. The lower bushing needs to be the same diameter as the C10 but the bolt size needs to be 10mm which is the stock C14 lower shock mounting bolt. Of course as stated above, you will need to fabricate some type of a mount for the adjuster.