Trouble Inserting Axles

Drop out the chunk and see if the axles will completely enter the housing and seat all the way .
If they do,,,it’s definitely the center section .
If they don’t,,,,it’s probably a warped housing .
If they fully enter the housing,,,you should be able to measure the amount of room between the axles before they butt together .

Good luck,,,yes you do have a serious issue and I understand your being desperate .

By the way,,,,1 inch spline engagement is not fully seated .

Tommy