D2 oil cooler question

Hello again everyone. I have another question on my d2. My oil cooler started leaking and when I took it in for repairs I was told it is not repairable. I have been searching for another as I want to keep it original. I ran across one out of a 3j or 5j. Are they the same? Mine is 5u 9476. I know I could bypass it but really want to keep it original equipment. Any help appreciated. Thanks.

Jason.

research here, i'd abandon it, like i did my 3 tractors and stationary engines. i plug my lines, reinstall, open the bypass, this way it looks original .

http://www.acmoc.org/bb/google.php?cx=009227653988187447506%3Adulfrq0xldw&cof=FORID%3A9&ie=ISO-8859-1&q=oil+cooler&sa.x=0&sa.y=0&siteurl=www.acmoc.org%2Fbb%2Fshowthread.php%3F24943-D2-oil-cooler-question&ref=www.acmoc.org%2Fbb%2Fforumdisplay.php%3F4-DISCUSSION&ss=1j1j2

best thread about it

http://www.acmoc.org/bb/showthread.php?18707-D2-5U-Oil-Cooler-Bypass

As far as a "J" series cooler fitting a "U" series, they are different. There are a couple of variations of U radiators if I remember correctly? A "J" has the oil cooler in front of a full core engine radiator where as a "U" has a 3/4 core engine radiator with a 1/4 being the oil cooler as I remember.