Z32 Twin Turbo Tremec T56 Swap // Dialing In Bellhousing Alignment & Uncorked First Start

This video covers the step bybstep transmission integration, critical dial indicator indexing, and the loud, uncorked first start of a custom Tremec T56 6-speed manual transmission swap on a Nissan 300ZX (Z32). When adapting an aftermarket transmission to a high performance engine, guessing on alignment is the easiest way to destroy thrust washers, wipe out input shaft bearings, and ruin your drivetrain before the car ever leaves the lift. Seb takes you through the meticulous precision work required to execute this T56 swap correctly using a Grannis adapter plate framework. We break down the step-by-step process of prepping the rear block, installing a new pilot bushing, swapping the rear main seal, and mounting a custom Specialty Z flywheel and clutch assembly. A massive portion of this video focuses on indexing the Grannis plate and bellhousing using a digital dial indicator to measure radial runout by manually turning the motor over. Seb walks through how they corrected a massive alignment error down to a tight, manufacturer-approved clearance using custom 12-thousandth eccentric dowels from Grannis. A major focus of this video is the physical buttoning-up and routing of the swap. Seb demonstrates how they measured throw-out bearing clearances on the high end Tilton internal slave cylinder, customized a shortened driveshaft to accommodate the longer Tremec casing, and cleanly routed shielded bleeder lines. Watch as the team completes the transmission mount and treats you to a roaring first start on a fresh engine build with a completely open, uncorked exhaust system. Kit Features & Highlights: Tremec T56 Integration: Adapts a heavy duty 6 speed manual gearbox directly into the Z32 chassis using a precision Grannis adapter plate kit. True Centerline Indexing: Corrected runout clearances down to a safe 6-thousandths measurement using custom eccentric alignment dowels to protect input shaft bearings. Custom Flywheel Combo: Paired with a lightweight Specialty Z flywheel and a heavy-duty Tilton internal slave cylinder setup. Specialty Z Standard: We don't just "stab the transmission in"—we check internal housing clearances, grind away casting flash for ring gear room, Loctite the alignment dowels, and custom-shield all hydraulic lines. In This Video: 0:00 - Prepping the block: Sourcing pilot bushings, rear main seals, and flywheels 1:40 - Dial Indicator Indexing: How we caught a massive runout misalignment issue 3:00 - Modifying and installing 12-thou eccentric dowels from Grannis 4:05 - Grinding down casting flash inside the bellhousing for flywheel clearance 6:45 - Measuring Tilton slave cylinder spacing and installing the custom short driveshaft 9:10 - Uncorked first start on a fresh build and multi-stage oil break-in plan WHAT TO EXPECT ?! ⚙️ Hear the turbos. 🔥 Feel the passion. 🔧 Expect Many DYNO pulls, behind-the-scenes tuning action, and plenty of car culture 👉 Subscribe for more insane builds, turbo setups, and behind-the-scenes content. 💻 Shop Specialty Z Products All of our in-house performance parts are available on our official website: www.specialtyz.com . For questions or custom inquiries, email us directly at [email protected] . 📲 Stay Connected Follow us on social media for updates, behind-the-scenes content, and more: Instagram: @specialtyz Facebook: Specialty Z 👍 Support the Channel Don’t forget to Like, Comment, Subscribe, and Share to help us bring you more Nissan & Infiniti content! #Nissan #Infiniti #GTR #Skyline #NISMO #370Z #350Z #300ZX #TwinTurbo #JDM #Racing #Racecar #Automotive #Z32 #Z33 #Z34 #R35 #R32 #R33 #Datsun #Performance #CarCulture #CarSpotting #2024 #NissanZ