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Well folks,
Seems my "In Line Tube" stainless steel trans cooler lines aren't as great as thought. The lower line corroded and sprung a leak ! I thought the reason for using stainless steel is because they didn't corrode or pit. So now I will be replacing them again. I need some people to weigh in and tell me what you used on your cars keeping it period correct. So hard lines will be used again. Lines were installed about 6 years ago.
Never thought this would be as much as a pain as it is ! Right Stuff Detail doesn't carry a Trans cooler line set for a 71/72 TH350/TH400. Classic tube does but it is 6/8 weeks out ! Inline tube carries both steel and Stainless steel. But it was their product that corroded and developed the leak ! Now here it this question. My Cutlass Supreme has an OCT 1971 build date but is a 72 Model. I would assume that I would need the line set for a 71 TH350 not a 72. But the rep at Inline tube said that I would need to order the set for a 72 based on the model year. There is a difference between the two years. What is the groups feeling about this? Should I order lines for a 71 or a 72 ?
The difference between the 71 and earlier and the 72 is where the top line connects to the radiator. The 72 has the upper line much lower then then the earlier ones. The 70 lines had a much longer drop in the upper line. I used 72 lines on my 70 because I bought them not not knowing the difference. It worked out for me because it kept the lines off my headers.
THH 350 Trans cooler lines
