Ok guys I replace all my synchronizer in my gsr transmission the transmission is been siting for 4 years. it go in to every gear when I change by hand moving the gear selector. Now when I install the shifter changer holder and used a screw driver to change gear in the rod outside the transmission. It only go in to 3 gear and 4 gear. With the case open I don’t know if have to close the case so it go in to every gear. I believe the transmission was stock between those 2 gears before I open it. Why I say that is because the lingake fell to the ground will I was driving and I could get in any other gear that why I stop the car 4 years ago. Any help would be nice thank you guys

Thank you brother I was about to go get a shifter changer holder a the junk yard