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Old 01-10-2019, 05:24 PM   #1
1971Stepside
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Join Date: Mar 2002
Location: Springfield, MO
Posts: 2,932
4L80e Cooling Lines to Radiator

Can someone help me with sizes or part numbers for the two fittings on the transmission and what I need at the radiator? My radiator has 5/16 female ports for the transmission. I intend to use Russel braided 6an line for the plumbing. Thank you in advance! I don't have a local store that sells these fittings, so I have to order them and get it right the first time.
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

"I can't complain, but sometimes I still do. Life's been good to me so far."
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