Be sure that you use thread locker on those bolts for the gear and the stub shaft, also make sure the small oil pump woodruff key did not fall out and that the small drive gear is on the right direction- both sides of that gear have a timing mark not used with the delete kit, but some see a timing mark and think if faces front and the gear could be on backwards... Try it on both ways and look at the chain alignment- 1 is perfect and the other way is off just a bit that will toss the chain in about 50 miles.

Randy