Well apparently some of the old F-series transmissions from the 90-93 accords H2A5 tranny to be specific have a slightly different differential casing than the H-series. I got 2 transmissions one is cast and it has blank holes for the studs in the correct position where it bolts to the mount that just needed to be tapped and the other doesn't have the studs in the right location. Has anyone run into this? The only option I can think of right now is cutting my tranny mount and welding a new plate in