The Driveshaft Shop one-piece 4.0in aluminum driveshaft for 2015+ Dodge Challenger R/T (automatic) is a direct-fit aluminum replacement specified for those Challenger R/T automatic models. The listing notes an explicit requirement to use a subframe lockout during installation, so follow manufacturer guidance when fitting this single-piece driveshaft to the stated vehicles.
DSS Dodge 2015+ Challenger R/T Auto 4in Alum 1-Piece Driveshaft (*Use Subframe Lockout*) CHSH40-A