I have a 94 3/4 ton that I replaced the stock transmission pressure line with one that has a temp sensor housing from DC. I put about 2500 miles on it and it started leaking. It cracked right next to the flared end which threads into the fitting on the transmission. I got a replacement, put it on and within 120 miles it started leaking. I haven't taken it off yet but if it is cracked what is causing this. My friend has a 98 with 3 spacers between the lines on his truck. Mine has none. Is vibration causing this? HELP!
