1988 MK VII - Transmission bump on lock change

[FredCassin]

Hi, I recently I brought a MkVII , had the transmission checked and they says its OK. Change is good in 1st,2nd, 3rd but bumps into 4th or lockup. I have brought a shift kit, Question? is there any other parts I should change while I have the transmission sump off. Fred Cassin , New Zealand