As mentioned, that cooler is definitely not factory. Someone replaced it at some point with a larger unit. Whatever that tube and fin cooler is on the other side isn't factory either.
Yes, that cooler was definitely factory OEM. It had never been replaced. It came with the 8x11 same exact size as the M7B, but has flared fitting connections for OEM metal trans lines.
The whatever tube and fin cooler is obviously not factory OEM. It's a new Hayden Ultra-Cool trans cooler I have just added as a 3rd cooler, along with the new M7B.
This is the trucks 3rd transmission, and I'm currently building it's 3rd engine. Truck has 435,000 miles on it. I took original cooler and heated it up, sprayed brake clean in it, shook it up, and metal came out. Now I'm stressed the new trans may have ingested metal. Nothing I can do now.
I have a new 3 row aluminum radiator that was replaced after this transmission was replaced, a new M7B, and new tube/fin cooler. Fluid will go to radiator cooler first, then to tube/fin, then to M7B, and back to trans.
This is a GM reman trans. I'm putting on a 1700 stall TCI Converter, complete Corvette 1-2 and 3-4 servo kit with upgraded seals, a Sonnax Throttle Valve Boost Valve Kit .500", and a Sonnax tv cable correction kit.
Those few mods should make trans shift smooth under light throttle, but firm it up when more on the throttle without adding a "shift kit" and getting harsh shifts under heavy throttle.
Engines ready to install, I'm just finishing detailing engine bay, installing big 3 (6) kit, and some general wiring repairs.
I bought AC DELCO engine mounts, and filled in gaps with polyurethane. Should last a LONG time. The mounts I took off had the thin metal top plate.
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