![]() ![]() Calimer says a Calimer 23-spline replacement input is good over 700 hp otherwise step up to his 26-spline billet input on 1,000-hp monster motors. Most stock MT82s came with 23-spline input shafts that may snap under aggressive driving conditions. "Those gears will literally disintegrate." Replacing the internal gears and input shaft with his own proprietary billet gears solves the problem. "With aggressive ceramic clutches and high-shock engagement, a stocker tends to break third and fourth gears," says owner Ben Calimer. For 1,000 hp, you want the Stage 3 version. Calimer Transmissions specializes in bulletproofing the MT82. It has proven durable, but like any trans it needs enhancement to reliably live at 1,000 hp. The manual transmission installed in nearly all 2011 and later Ford Coyote-engined Mustangs is the Gertrag MT82 six-speed. Whether the ECU and harness is out of a production car or if you're using the Ford retrofit "hot rod" harness and computer, SCT is one source for a computer tuner program, but there are others as well (but not Acme). Be sure to check Ford Performance's website, as there is now broader coverage-including supporting the new 10R80 auto trans-than shown in its 2020 printed catalog. For emissions-exempt retrofit use, Ford Performance Parts (FPP) sells various retrofit control packs that include a wiring harness, an unlocked ECU, and a drive-by-wire accelerator pedal that manage both the engine and trans without all the extra "garbage" functions found in a locked-down-tight OE computer keyed to the individual vehicle. Using a Ford Coyote engine/trans takeout "pair" from the same car allows using an all-Ford engine management system to integrate both the engine and trans and tweak everything to your heart's content just like a brand-new factory car, including tuning VCT characteristics and controlling the late-model transmissions. ![]()
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