How to - Install -AN oil cooler lines

454cid said:

I think it's the earlier trucks that use the quick connect on the radiator side.

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Supercharged111 said:

My dad's S10 Blazer did. My old 88 with no oil cooler used regular flared fittings for the tranny, 350 truck.

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454cid said:

I've never seen anything but flared for the transmission side. That's a gm think that started in the 60s I believe.

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SAATR said:

Here's another option that uses the correct o-ring fittings instead of the straight threaded M20x1.5 fitting:

Use a M20x1.5 o-ring to M18x1.5 o-ring reducer like those supplied with my last two replacement radiators:

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And two of these fittings:

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Should fit perfectly with no thread sealant or oddball sealing issues. Thoughts?

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454cid said:

I've never seen anything but flared for the transmission side. That's a gm thing that started in the 60s I believe.

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L31MaxExpress said:

Lots of quick disconnect trans cooler stuff. My engine and trans oil coolers were all quick disconnect on my 97 and I hated it. Always leaking.

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454cid said:

They have a particular name (after a company), but I can't think of it right now.

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PlayingWithTBI said:

I've used Presto Locks on air lines before, is that the name you're thinking of?

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454cid said:

Engine/trans or radiator side..... I'm specifically addressing the radiator side of the lines. My oil cooler lines were quick connects on the engine... I don't think they ever leaked, or at least I couldn't tell from all the oil from the filter adapter and lines themselves. They have a particular name (after a company), but I can't think of it right now.

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