09 700 Grizzly rear end Problem!

I just installed a 6" Catvos lift on my grizzly and man does it looks good but I noticed the left side rear axle is touching the upper arm right where it bolts to frame. Catvos said they seen it many times and that my rear end diff has moved and I need a gusset plate. I got the plate in from Turners and was wondering if anyone else has had this issue and what is the best way to realign the diff? I looked at the mounts and nothing looks out of place or broke. Thanks for the help!