Here is a 1971 Plymouth Hemi Cuda.  It has a 426 Hemi, TorqueFlite AT with a Gear Vendors Overdrive. It also has an Alterkation sub-frame replacement for the standard k-frame and rack & pinion power steering.   In for general service, I am looking to resolve a few oil leaks and make the vehicle MORE streetable!

The rear main seal needed to be replaced. The original engines had a 'rope' seal and today's technology offers a 2 piece synthetic rubber seal which usually provides superior sealing. Just make sure to use a "premium" quality seal whereas this work is not easily accomplished.