Hi guys, I went to change the leaking return line on my transmission on my 2004 buick lesabre and the new fitting was completely different. I bought the dorman version of what is supposed to be 04+ models with 9/16-18 thread. The threads sorta looked a bit bigger than the old one and wouldn't thread on.
Any ideas? None of the suggested parts on rockauto are long like the one in my transmission.