383 '68 barracuda

18 spline "hemi" 4 speeds were not available on a bodies when new. Only B and E bodies. Is your trans case an A body? We're the guts swapped into an A body case or is your trans from a different car and adapted?

Inland shifters were used in 1968 A body cars but Chrysler switched back to Hurst shifters sometime during the model year. So your worn out Hurst may not be incorrect.

If it fits but is just in need of a rebuild, why not just use it after getting it rebuilt?