I swapped my stock lower to a metco interchangeable set up and now the belt jumps off toward the rear of the pulley by 2 ribs. I didnt have any issues with the stock lower. Im assuming something is up with my metco lower as it never did this before but it spins true (from what I can tell) to the crank. Im starting to lean to maybe a bad idler pulley as one idler pulley is running where it always has and the other one is running more towards the rear. Any ideas on what my problem could be? I am new to modding lightnings so any help would be appreciated!