Hello people , hope you are all good and well . I was after a bit of help if possible . I am having a bit of trouble with my gearbox . It's the usual problem with it popping out of 5th gear and also crunching when I change into 3rd gear . After doing a bit of research I realised the 5th gear could be changed without removing the gearbox ( great stuff) so I bought the 2 cogs for 5th gear which were 53/38 apparently longer 5th gear for my van from a 2.8 , however after giving these to the mechanic to fit he told me these where the wrong ones as they didn't look like they were interlocking enough , ĺong story guys sorry . The guy who I bought them off is adamant that these are correct . After all the messing around I'm actually looking to take the van elsewhere and have it either reconditioned or buy another box and have that fitted . Problem is I don't know what box to look for as there seems to be a few different ones for that van , I've had the mechanic look but he said he couldn't see a code (couldn't be assed more like) sorry for the rant , any help would be greatly appreciated