Hi I am on my third world class t5 within one year here is my problem the first t5 i got summit racing and when i bought it i also got a ram muscle car clutch kit and clutch cable well within 3 month 5th started to grinde tried adjusting the clutch but it did not help then about 1 month later all the gears started to grind oil was good so i called up summit and ther gladly replaced it for free got that transmission and the same thing started to happen wtf so called up again and got another one and once again 5th started to grinde called them again and the tech guy told me that these transmissions are not that strong and i told him that i heard that the shifters that they come with are junk he told me that is not case its just that thay dont hold up to abouse well so i got the pro 5.0 shifter and that solved the problem so are the stock shifters really junk or did i just have bad luck with transmissions