On mine, I used the original 4 speed Speedograph angle drive, and Simon made up an adaptor to mate the two together.
![[Linked Image]](https://www.tm-img.com/images/2023/03/06/Drive.jpeg)
IIRC, Arwyn also used the original four speed drive and adaptor, and turned it down to fit inside the 5 speed box. He said there was a handy bolt hole nearby the allowed him to use the original clamp The Lotus Elan crew use the same drive and gearbox - that's where I got most of my bits from when the drive broke on my 4 speed.
Speedo Drive Speedograph Drive - you need their BG2402-03
Drive AdaptorClamp