Where can I buy coolant lines for a 4L80e?

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itsallhistory

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One of the transmission coolant lines on my 91 Suburban is leaking. It's the 4L80e. Does anyone have a source for buying replacement lines? I think the original is bent and therefore can't make a proper seal anymore. I've looked online and can't seem to find any. Thanks.
 

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Thank you. I'll take a look. Appreciate it.
 

bucket

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I always make my own with 5/16 steel line from the parts store. The nuts and flares are correct for the trans and radiator.
 

kleedus

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my 97 4l80 had a weird plug deal on the tranny side not like the old school flare nut
 

bucket

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my 97 4l80 had a weird plug deal on the tranny side not like the old school flare nut

Oh yeah, the later ones have the quick connect fitting (although not often so quick to disconnect). IIRC, you can simply remove those fittings and screw in the old style flare nut fittings.
 

itsallhistory

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I'm going to use braided steel line and Russell fittings as well as the adapters from Sweet Performance. My next question is, what size are the fittings that go into the radiator? 1/2, 3/8, 5/16, or 1/4 inch? I need to buy the adapters for radiator to Russell -6 AN fittings.
 

foamypirate

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I'm going to use braided steel line and Russell fittings as well as the adapters from Sweet Performance. My next question is, what size are the fittings that go into the radiator? 1/2, 3/8, 5/16, or 1/4 inch? I need to buy the adapters for radiator to Russell -6 AN fittings.

These are what I used to adapt the radiator to -6AN when I built my -6AN trans cooler lines. If you want Russel brand, you can just search for 1/2-20 Inverted Flare to -6AN fittings.

http://www.summitracing.com/parts/sum-220668n
 

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