hi,
If you're using mgldr, i would suggest making a full back up in recovery first by booting into mgldr>ad recovery>back up and restore>back up. After that, format your new sd card and partition it as required if you're using sd-ext/apps2sd. Remove old sd card from phone and make complete transfer of all the files from old sd card to new one by cut/copy paste method using your pc. After transferring files, insert your new sd card and boot into recovery by going to ad recovery in mgldr. Once in recovery, go to back up and restore choose restore and select the back up u made earlier. It should be there if u transferred all the files from old sd card. After restore is done you can reboot and wait for it to settle down. U can wipe dalvic and cache and fix permissions in recovery if u want before reboot but i dont think it's needed since u have a fresh sd card after formatting it first and the files are exactly the same as previous sd card.
Sorry i can't help if you're using clk. Hope i was of any help.