I drove the Bird to the local Muncie Guru (Jet Boat Bill) yesterday for him to take a drive and what his thoughts are. It is most likely worn out sliders. He will rebuild the trans and use new Torque Lock sliders to lock the trans into gear. Not looking forward to dropping the trans after installing the new 461 6 months ago.

BTW, He really enjoyed the torque of the 461. Said it accelerated faster than his SBC trike!