TF 904 Auto slipping 2nd to 3rd when manual shifting @ higher revs

Hi Bewy, thanks for coming in , nice to hear from a local... The trans is not that old from a rebuild, and now I have the cable connected and working well, there is no slippage whatsoever... Anyways, I'll definitely upgrade to a forward pattern manual valve body, so if you have any good local recommendations in Oz, happy to hear