How To Install A Transmission Cooler On A Th350

If you use the cooler in the radiator, it transfers heat from the trans fluid directly to the coolant, then it is transferred to the air by the radiator. If you have a separate cooler in front of the radiator, that cooler will transfer heat from the fluid into the air, which then is warmer when it travels through the radiator. Find Automatic Transmission Cooler Lines with TH350 Transmission Type and get Free Shipping on Orders Over $99 at Summit Racing! JavaScript Disabled. Automatic Transmission Cooler Lines, Flexible, Stainless Steel, 4L60, 700R4, TH350, TH400, Pair.

The GMT800 generation of General Motors’ fullsize trucks and SUVs is one of the most popular among truck enthusiasts—and for good reason. They’re thoroughly modern vehicles, but still relatively easy to work on, and were the first models to utilize the LS-type V-8 engines. It was also the first generation of GM’s lovable oddball, the Avalanche.

However, GM made some interesting choices with the standard configurations, some not always favorable to owners. One of which was the lack of a proper factory transmission cooler for Avalanche 1500 models. In online forums, there are plenty of horror stories about premature failure of the 4L60E transmission. Most are related to excessive heat or owners tuning their engines to produce more power than the factory transmissions were designed for. Since we’re not planning on doing major engine upgrades that will push the trans beyond its limits, we decided to install a B&M SuperCooler transmission cooler to give us an extra measure of confidence when towing.

We selected the model #70264, which has a 14,400 Btu rating. We found the cooler made a significant difference in terms of cooling and preventing heat soak. Rozenkrug na karte.

Previously, we could get the transmission fluid to spike to 190 degrees or more with just a few wide-open-throttle runs, or on prolonged uphill grades. Afterward, we made repeated WOT runs and went up a steep, prolonged grade at full throttle, and the transmission fluid temperature remained steady at 150 to 160 degrees. A difference of 20 to 30 degrees can mean the difference between transmission failure or making it to your destination safe and sound when towing.

Follow along as we knock out this install in just a couple of hours.

As with most things associated with this hobby, installation takes much longer than removal. You’ll see the biggest benefits of using a lift and transmission jack for transmission installation. It can lift the unit slowly and then support the weight for hours while you get everything lined up and move other items out of your way. This Tech Tip is From the Full Book,. For a comprehensive guide on this entire subject you can visit this link: SHARE THIS ARTICLE: Please feel free to share this article on Facebook, in Forums, or with any Clubs you participate in. You can copy and paste this link to share: https://www.chevydiy.com/gm-turbo-350-transmission-installation-guide/.

The first step in this process is to install the torque converter into the transmission. Pour at least 1 quart of clean ATF slowly into the torque converter. Lubricate the bearing surface of the hub and slide the torque converter onto the transmission. Spin the torque converter at the same time to help align the input shaft and stator splines. This may require considerable effort. The final step in the process is to make sure that the notches in the hub engage with the transmission oil pump.

If the torque converter is new, and a new bushing was installed in the oil pump, the torque converter has a relatively tight fit, and it can be considerably difficult to install. You’ll have to have some patience for this procedure; it may take several minutes of spinning the converter and pushing it back into the transmission to get it to fully engage. Once it’s fully seated, there is very little room between the back of the converter and the oil pump. Once you have installed the torque converter, spin it several times to make sure there are no tight spots or binding. Do not attempt to install the transmission unless the converter is fully seated. Any attempt to pull the transmission up to the engine with the bellhousing bolts can damage the oil pump.

Place the transmission on the jack and secure it with a chain or strap. Use care here to ensure the torque converter doesn’t fall out during this procedure. Adjust the transmission jack so the transmission is angled back slightly while it is raised into position. If you are working by yourself, you may want to install one bolt and a piece of flat bar (bent in slightly) temporarilyto hold the torque converter in the transmission. Determine if the filler tube needs to go in before lifting the transmission into place, or if there is room to install it afterward. With many modern vehicles, the curve of the bellhousing and proximity to the firewall does not allow the tube to be installed after the transmission is in place and bolted to the engine. Another big problem I’ve seen is with an upgraded torque converter.