Transmission and Engine Oil Cooler - Stock GM

[83burban]

I have an 83 c10 suburban heavy half that i recently dropped a new motor and trans in (350/ 700r4) This is my daily driver and runs great, just drove it 2800 miles across the country in 3 days with 0 issues.

But here's the question - when I got it, the motor had an external oil cooler on it but no external trans cooler. I haven't hooked up the old oil cooler because I don't want the old motors junk to float into my new motor. I want to keep it stock gm with the oil cooler but am having trouble finding the correct one and the appropriate lines. Can any point me in the right direction here?

This car will see a couple more cross country drives and will tow my other cars on occasion which is why I want a trans cooler. Any one have any recommendations? Did gm make have an option that I could get. I don't want to get a cheep aftermarket one but don't want to drop more on the cooler than i did the trans.

Thanks for all the help