Question: I have a 2018 Big Country 3950FB and want to change the factory shackle and bolt kit to the MORryde wet bolt kit with the beefier shackles. I see on their page that they have 2 lengths of shackles. 2 1/4 and 3 1/8. For those using the MORryde wet bolt kit or who are just in the know, what size does the Big Country without the Correct Track system use? Thanks you in advance.