1st gear is slightly jammed

[Werner]

Hallo und guten Abend.

I have revised the gearbox and the switchtower. All bearings and shafts renewed. The tooth flanks are finely grounded. The shift forks are grounded flat. The lower gear lever ball is round. Oil 680 + MoS2.

My problem: In the stopped car, the transmission can be shifted perfectly, also with the engine running. But when driving, first gear is difficult to get out. He's sticking a litttle bit. No noticeable difference if warm or cold.

Any ideas?

Much thanks in advance!