The 01E and 01X (along with the 012) are listed for the same vehicle applications so I suspect the mountings, particularly the bellhousing, are all the same. Code GDX according to my information is listed as P/N 01X300044DX, with a R&P of 3.875:1, 1= 33/9, 2= 39/19, 3= 37/26, 4= 33/31, 5= 29/34...