Fits 2015 and newer Dodge Hellcat at the rear differential flange.
Fits 2013 and newer Dodge SRT 392/ SRT8 with Scat Pack at the rear differential flange.
Specs:
Part Number: T35-ALFY-08
Number of Bolt Holes: 8
U-Joint Series: 1350
Bolt Hole Diameter: 0.425″
Bolt Circle Diameter: 3.465″
Pilot Style: Outside Diameter
Pilot Outside Deamer: 4.093" 
Flange to Center Line of U-Joint: 3.440″
High quality CNC machined aluminum flanges from Sonnax Industries. Capable of withstanding high horsepower applications up to 1,200 HP. Eliminates weak high speed CVs. Allows for the creation on a one-piece driveshaft in place of the fragile and performance inhibiting 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.