So last winter I decided to buy a T5 to rebuild. I did a lot of research and watch some videos. Took my time since I had all winter. Everything went well. Spring comes. I put it in everything is going great 1st 2nd 3rd 4th all good. I go to put it in 5th and it would grind. So I try again but very lightly and it goes in. Now I'm stressing. What I noticed was if the rpms are to high it will grind. If I shift at low rpm it goes in. Any help on why this is happening would be very very appreciated.