Hello municipality, the old evil. Have a problem with my 5 gear, that means when inserting the 5 gear “scratch” he then goes in and stays inside. Then opened the gear and looked, did not take apart, there was no damage visible. Did also the oil sieve found no abrasion. Well, it seems to me that the pinion and the Syncronring are as good as new were also filled in instead of the 2,75l gear oil already 3 . My guess is that the Syncronring has something but I am now lay. Possibly new rope hoists built in ? The data of the car :Hymer B – Bj.98- Fiat Ducato 2,5 TDI/115 PS- Runs 98 000 km. Does anyone have an idea ? Thanks in advance. Greeting Franz