Truck not moving after cab mount replacement

I replaced my front cab mounts yesterday, now today I crank the truck and put it in gear and when I let off the clutch the truck doesn’t move! The shift slid into gear soooo easily. My truck never slides in gear that easy. I tried locking the rear diff, still no movement.

I tried accelerating while in gear and once I got to abt 1500 rpm’s the truck started moving ever so slightly.

I’m looking for some direction on how to approach this. I’m thinking that since my old cab bushings were obliterated, my clutch or linkage had been adjusted accordingly, and now with the new front cab bushings installed, it’s possibly pulling the linkage out of place.

Any advice?

For reference: 2007 international 9900i with Cummins isx cm870 14.9L paired with a Eaton 13 spd I’m in Louisiana