JPC Racing Stage 1 TH400 Swap Package (2015–2017 Mustang GT)
At JPC Racing, we make transmission swaps simple. Traditionally, these swaps involve a lot of guesswork, incorrect parts, and endless fabrication time. With years of hands-on installation experience, our in-house team has developed complete transmission swap packages that remove all the hassle and uncertainty.
Our Stage 1 TH400 Package includes a TH400 built by Proformance Race Transmissions, rated to 850 horsepower — the perfect setup for racers looking for reliable, entry-level performance with professional-grade components.
Each Unit Features:
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Transbrake valve body
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Direct drum modified for instant transbrake release
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Clutch packs and unit end play clearance set for “low drag,” friction-free performance
Package Includes:
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Proformance TH400 Transmission
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Neal Chance Torque Converter – custom spec’d to your application
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SFI Flywheel (8-Bolt)
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SFI Bellhousing (pre-mated to transmission)
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Flexplate Bolts
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Transmission Mount
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B&M Transmission Cooler with fittings and 20 ft of cooler lines
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Hurst Shifter
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Custom-Built PST Driveshaft with billet yoke
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Flexible Braided Dipstick
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ARP Converter Bolts
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All required adapters and installation hardware
Optional Add-On:
Upgrade with an AEM X-Series Transmission Temperature Gauge for precise, real-time monitoring. These gauges combine advanced features and high visibility in a slim design:
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Auto-dimming sensor for ideal brightness
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87% larger programmable center LED
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Standard or metric readout (100–300°F / 40–150°C)
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User-selectable threshold warnings
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Peak/recall via face buttons
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AEMnet CANbus-enabled for EMS or data logger integration
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0–5V analog outputs for EMS/data logging
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33% larger gauge display for quick readings
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Standard 2-1/16" (52mm) housing
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Ultra-slim 0.825" depth for easy mounting
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Positive locking connectors for secure installation
Build Time: Approximately 2–3 weeks
Trust JPC Racing for a complete, engineered TH400 swap package that delivers proven performance, reliability, and straightforward installation for your 2015–2017 Mustang GT.
