Hi,
Go through the gears with the engine off. If it is stiff or feels like it is binding, it is likely the nylon bushing in the shift rod bracket.
It it moves freely, start ‘er up and go through the gears again. if it is stiff, it;s likely the trans issues mentioned in earlier posts.
Paul Mossberg
Former Owner of a 1981 Classic Roadsters Ltd. Duchess (VW)
2005 Intermeccanica Roadster
If you own a TDr and are not in the Registry, please go to https://tdreplica.com/forums/topic/mg-td-replica-registry/ and register (you need to copy and paste the link)