ok i have a 90 civic with a jdm b16 and a jdm y1 tranny everytime i put my car into 4th as soon as i let the clutch out it pops out but after a few trys it will stay in but if i try to pull hard in 4th it will pop back out,but i can slam it in at 8000 rpm and its fine,please help tired of this crap

 

your clutching teeth or dog teeth are worn and that means you have to rebuild it.

 

oh heck yeah im loving that. also it is really sloppy and i have all new enegry suspension bushings in the shift linkage guess that goes along with it

 

it can be fun. Just make sure you don't mess up the synchros or you will have a bak getting them to work right