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That was a bad link but I did a search on the Russell #... close but no cigar... that's the same as the fitting I asked about a few threads down asking if the EFI fitting would work...
If you are going to use a fitting like this, then why not just use the factory cooling lines? I don't see this fitting as an upgrade.
I already bought all 4 AC-Delco steel lines but I think running hoses would be much easier. If I put on stock lines I'd have to blow out the stock cooler in the rad too. I was thinking of bypassing the rad cooler to make things easier to get the vehicle inspected and to make it semi-drivable, with an external cooler. The vehicle was run, idling on a lift for a good 10-15+ minutes, to find the leak--a steady leak. Then it was driven home a block or so w/o 3rd/4th. The shop wanted $120 (if I remember correctly) to cut the line and put in a section of hose, or was it a compression fitting and piece of line? Crazy...
If you are thinking you are going to use an external trans cooler and not plumb in the radiator cooler just use AN fittings and flare the steel lines. That is what I did on my LS swap. Worked very nicely
I already bought all 4 AC-Delco steel lines but I think running hoses would be much easier. If I put on stock lines I'd have to blow out the stock cooler in the rad too. I was thinking of bypassing the rad cooler to make things easier to get the vehicle inspected and to make it semi-drivable, with an external cooler. The vehicle was run, idling on a lift for a good 10-15+ minutes, to find the leak--a steady leak. Then it was driven home a block or so w/o 3rd/4th. The shop wanted $120 (if I remember correctly) to cut the line and put in a section of hose, or was it a compression fitting and piece of line? Crazy...
That fitting that you are asking about I don't think it will fit an after market cooler.
if you want reasonable don't use AN stuff. this seems like a classic case of ”i've already bought this and i HAVE to use it”
I only have around $32 invested in two 6AN to 1/4" NPS (straight threads) trans fittings, 7ft of PTFE SS hose, and two 45-degree, two 180-degree, one 90-degree and one straight red & blue AN SS hose ends. The four GM lines were ~$80-$90, maybe more, I'd have to look. Plus I heard some labor costs $400-$600.00 to install the GM lines.
If you are thinking you are going to use an external trans cooler and not plumb in the radiator cooler just use AN fittings and flare the steel lines. That is what I did on my LS swap. Worked very nicely
The stock lines are leaking from a rust hole in one line, I jumped on the interstate for about a 3 or 4 mile drive to DMV and lost 3rd & 4th--when I arrived I checked the fluid and dipstick was dry/fluid empty/off the dipstick. Next driveway was Checker's and I bought a gallon of ATF and made it home, around the corner from me was a repair shop, they put it on the lift and it was a steady leak. I drove it home and that was the last time I started it, about a year ago. (it's my only vehicle that was licensed/insured/on the road.) Been getting EVERYTHING delivered--groceries, auto parts, meds.
Did you use 45* or 37* flare tool? I had a really nice 37* tool 20+ years ago, the dies were on wheels you turned to the size you want, I got out of the automotive biz around 1999-2000 & got rid of most of my tools or they were stolen or confiscated, not sure what I still have... very few... I couldn't walk/stand for a year & I lost everything. I did use Earl's blue nuts & sleeves on 3/4/6/8/10 tubing back then, Aeroquip 3AN steel hose ends, black oxide steel compression fittings too. I was the only one back in the 1980's-1990's using/making PTFE SS lines in the area with industrial fittings and hose ends.
That fitting that you are asking about I don't think it will fit an after market cooler.
You are right if you are talking about the quick-disconnect... BUT it would fit in the case fittings getting the AN fitting out of the dark another inch or so closer to me, as well as the two in the radiator. Then I can use 6AN from the trans to the radiator if I just don't replace them in the tank like Maroon suggested. Otherwise I'd need a fitting of some kind in the radiator anyway--the quick-connect to AN male at ~$7 would be similar price to straight thread pipe male to GM QC female anyway. It's already in 4 locations (the QC female NPS) and may be easier to remove the QC male tube from them using the round tool that holds the clip open than it is to unscrew the fittings.
As for the remote/external cooler, I'm still trying to find a big cooler with threaded fittings that has a thermal bypass. I think one company uses a principle that the ATF is restricted until it is hot and the viscosity thins up enough to run thru the plates more, or more quickly. TruCool has 2 of the stacked plate coolers that use inverted flare threads, LPD4711 is 3/8 inverted flare.
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Anybody know where to get this fitting... 
