Hi Bill,
We've been toiling away on the shifter issue for quite a while. Most shifters like the Corvette unit mentioned and also most kit shifters will reverse the shift pattern since the actuating rod is past the pivot point. So if 1st gear was top left and 2nd strait back (bottom left) these shifters create a 1st at bottom left and 2nd 2nd top left. Not a big deal, just not right.
There's also the question of adequate throw for different transaxles both in stroke and linear travel. Then you need to consider adjustability to fine tune the shifter position. Also accomodating different paths for the acutating rods has to accomplished without introducing friction or binding.
It's a tricky part to design, the part shown here is generation four of our upgraded CAV GT shifter for ZF application. This shifter will throw ANY rod shift gearbox, transaxle or transmission (front engine).
A universal version of this shifter will be available shortly. It will mount in the console or the sill in virtually any GT40 replica. It works the same way as the CAV part however it incorporates mounting points for base plate or side plate mounting. Pictures coming soon. Just the ticket for Porsche, Renault, ZF etc.
The CAV part bolts right into CAVs set up for ZFs. It includes an offset shift arm, u-joints, bulkhead filler panel and shift rods so you can get past just about any engine front accesory drive situation.
The pictures show test fitting in a customer car. The blue aeroquip line makes a great mock up u-joint or flex point for a bend in the rod. The u-joints can be fitted with dust boots too for exposed installations.
The beauty of this part is in being extremely precise yet has virtually no drag. The hardened steel shift rod travels in PTFE bushings and the stick is actuating through an Aurora rod end. Smooth, slick and tough.
Stay tuned for pics on the universal version, help is on the way!