95 altima shifting problem...

wuddup everyone, i’m have a problem with the shifting on my altima. It’s a brand new gear box but once the car heats up it becomes very difficult to shift from one gear to another. i havent been able to figure out the problem yet. If anyone knows whats wrong then holla back because it becomes very annoying to drive when the shifter is stiff. thanks

might be your clutch

bleed your slave cylinder or check to see if its leaking, and check your clutch master cylinder if it is leaking as well, i went through a clutch due to a bad slave clylinder and also a bad clutch master .if all thats good then its probably your clutch…