4T80E Transmission Cooling line threaded fitting stripped in transmission (Page 1/1) Synthesis MAY 01, 08:03 PM The front (lower) transmission cooling line on the '01 Aurora 4.0 is loose in the transmission. The line is a threaded fitting, and threads into a brass fitting that in turn threads into the transmission. This is stripped, and I'm spraying fluid everywhere... I am having issues finding others having this same issue. Help? I need to get it fixed ASAP. V8 Vega MAY 01, 08:46 PM If you take the brass fitting out WHAT EVER YOU DO. DO NOT USE TEFLON TAPE ON THE TAPERED PIPE THREAD THE BRASS FITTING HAS. I did on my TH 350 in one of my Vegas and it cracked the aluminum trans case ruining the transmission. I read on the instructions for a Holley electric fuel pump not to use Teflon tape on the tapered threads as it cracks aluminum, use plumbers pipe thread putty instead.