Does your Mustang have a damaged bell housing or missing bellhousing spacer plate? Whatever your need is, LMR.com has you covered.
1979-1993 Mustang Bell Housing & Spacer Plate
1994-2004 Mustang Bell Housing & Spacer Plate
This is my almost all original 1989 GT. It has a 4.10 and glasspacks. That is, as far as I have found, the only unoriginal items.
I had been looking for a FoxBody to call mine for about ten years....