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Fortunately, we can add one to your instrument panel for a pretty nominal fee – just $79 (when ordered along with a Full Rebuild. Unfortunately, the basic packages on SIlverado trucks don’t include a transmission temperature gauge.
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One of the best ways to know you’re not over-taxing this indispensable part of your hard-working vehicle is to monitor the transmission temperature. Past that point, you’re looking at transmission failure that can leave you stranded and can easily cost as much as $2,000 to repair. Heavier loads can put a strain on your transmission, one that it is designed to take – to a point. Special Thanks to Ron’s Towing of Rochelle, IL for letting us install these gauges into his truck.The 03-06 Chevy Silverado is no light-duty pick-up truck, and we’d bet you’re not hauling cotton candy in yours. Pick-up truck version is shown from further away to give a better idea of where you are looking. Pick-up truck version is shown, viewed from the right side with tire and inner liner removed. Hole Drilled and tapped, and probe fitting installed. Tow truck version is shown from above the rear of the engine, from the interior.
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The tap has tapered threads that get larger the deeper the tap goes in. We recommend to run it only halfway through, then test fit your fittings. Use caution when running your tap through the hole. Use a 5/16” or Letter R drill bit, then follow through with a 1/8” NPT pipe tap. You will drill and tap the exhaust manifold near #8 (last) cylinder. In your pick-up truck, it is easiest to access by removing the right front wheel & tire and the right front inner wheelhouse liner. Since this is in a tow truck, the right bank exhaust manifold was accessed from above and behind the engine through the engine access cover (similar to a van). Upper intake reinstalled, with boost line and fitting installed. Upper intake removed, with a hole located, drilled, and tapped. Tip: Look for the wastegate (seen in the picture) to find the line if your truck is a 2003 or earlier model.įor pick-up truck and later versions without the wastegate, use a 5/16” or Letter R drill bit, then follow through with a 1/8” NPT pipe tap. In the picture above, you can see the T installed into the wastegate line (viewed from behind the engine in this case). For later versions, this line is no longer there, which then requires you to remove, drill, and tap into the upper aluminum intake on top of the engine. You may use a ¼” Vacuum T to “T” into this line. On this model, as well as earlier models, there is a vacuum (boost reference) line going across the top of the back of the engine for the wastegate. We used a ½” NPT 3-way Pipe T, with two 5/8” Compression-to-1/2” NPT fittings.īelow is the installed T fitting set up, with the sender installed into the T, using the supplied ½” NPT to 1/8” NPT bushing (adapter/reducer) that came with the gauge. We easily located fittings at a local hardware store that worked perfectly for this. You will want to measure yours to verify the size, as this is on a heavy-duty tow truck. These transmission lines are 5/8” in outer diameter. The straight section shown is cleaned and with the tubing cutter in place. Keep in mind that the lines need to be long enough to insert into the compression fittings with the T fitting assembled. Use a tubing cutter to cut out a section of line to match the distance needed to install the T with the fittings installed. We found a straight section of trans line to install our fittings into the outgoing trans line. The case of the transmission is identified “TO COOLER” and “FROM COOLER”. With the high cost of transmission fluid for this transmission and its recent trans service, we opted to modify the outgoing (from trans to cooler) transmission line. Therefore, you can either drop and modify the pan or you can modify one of the cooler lines. This application does not have a readily available pressure port to conveniently thread a sender into. We opted to install the gauges into a Universal Gauge Pod ( Part #5288) for this application. Here, we installed GM Factory Match Transmission Temperature ( Part #8357), Boost ( Part #8304), and EGT/Pyrometer ( Part #8344) gauges on a tow truck equipped with the Chevy/GMC Duramax. AutoMeter’s Factory Match gauges are a great way to have more visibility on vital measurements without sacrificing the factory look.