When im high in the revs in 4th and change to 5th it crunches into gear, does this mean i need a new gearbox?

Car is a 2003 wrx ppp

 

Also, when im changing gear at speed, not just 4-5th, the revs seem to hold for a second after i take my foot off the throttle! This is my first scooby, so im a bit of a noob to the cars

 

If the revs are holding, that won't do your gearchange any good!

https://www.scoobynet.com/general-te...n-synchro.html

 

First thing to do is check the gearbox oil level, the dip stick is to the left/behindish the intercooler.
If its low then thats your issue, I would also get it changed, if its at the right level then you are looking at something more expensive
Also when was the gearbox oil last changed? it has a 2 year oil change on the service interval.

Tony

 

Had exactly the same 4th to 5th crunch issue at higher revs on a MY03 wrx i used to have after the oil levels were checked and found to be ok, try researching baulk rings ? The MY03 wrx with above factory power levels was particularly prone and the car had only done 25k. I part exed the car to a dealer so can't tell you if it got sorted.

 

Thanks lads. Al look into these sugestions