The issue with Lowbudgets car and a few others was ATI cast their small block mopar bellhousings for the powerglide supercase 3/4" too short. Took me 3 months of back and forth with ATI until they finally listened to me and rechecked there measurements and realized it was too short. So they fabbed up a 3/4" spacer between the bellhousing and the case to fix the issue. They haven't made a new run of those bellhousings yet that I know of, because im supposed to be getting one when they do. They want to sell all the short ones before they make new ones and its not like SBM to powerglide bellhousings are something they sell alot of.