Sonnax T35-GMFD-01K 1350 Series Aluminum Flange for direct bolt-on to 3 prong flanges.
Fits the following:
6L80 and 6L90 transmissions and differential flange on 2010+ automatic and manual Camaros.
2015 and newer Mustang GT (V8) manual transmissions.
TR-6060 and TR-3160 transmissions with tri prong.
Certain V8 Dodge Chargers and Challengers with 3 prong flanges on the transmission and rear end (NOT V6 MODELS or 2013+ SRT 392/ SRT8 or Scatpack or Hellcat models).
Fits 2005 and 2006 GTO rear pinion only.
*Always measure your flange to make sure this part will fit prior to purchasing!
Specs:
Part Number: T35-GMFD-01
Number of Bolt Holes: 3
Bolt Hole Diameter: 0.500″
Bolt Circle Diameter: 4.331″
Pilot Style: Female for centering pin 
Pilot Pin Diameter: 0.632" (and 0.500" with included insert)
Flange Face to Center Line of U-Joint: 3.00″
High quality CNC machined aluminum flanges from Sonnax Industries. Capable of withstanding high horsepower applications up to 1,000 HP. Eliminates weak rubber flex disks, nose bushings, and/or high speed CVs. Allows for the creation on a one-piece driveshaft in place of the weak stock two-piece. That means no more staked in u-joints and no more center support bearing! Allows driveshafts to be made for a new era of engine/tranny and differential swaps.