Next Gen Performance Stage 2 TH400 Swap Package (2005–2014 Mustang GT)
At Next Gen Performance, we make transmission swaps easy. Traditionally, these projects involve guesswork, wrong parts, and excessive fabrication. With years of in-house installation experience, our team has developed complete transmission swap packages that eliminate all the uncertainty.
Our Stage 2 TH400 Package features a TH400 built by Proformance Racing Transmissions, rated for 1200+ horsepower.
This transmission is designed for serious racers who demand durability, consistency, and performance.
Each unit includes:
-
Transbrake valve body
-
Direct drum modified for instant transbrake release
-
Pro Mod drum
-
Clutch packs and end play clearance optimized for “low drag”, friction-free performance
Package Includes:
-
Proformance TH400 Transmission
-
Neal Chance Torque Converter – custom spec’d to your application
-
SFI Flywheel (8-Bolt)
-
SFI Bellhousing (pre-mated to transmission)
-
Flexplate Bolts
-
Transmission Mount
-
B&M Transmission Cooler with fittings and 23 ft of cooler lines
-
Hurst Shifter
-
Custom PST Driveshaft with billet yoke
-
Flexible Braided Dipstick
-
ARP Converter Bolts
-
All required adapters and installation hardware included
Optional Add-On:
Upgrade with an AEM X-Series Transmission Temperature Gauge for highly accurate, real-time monitoring. These digital gauges offer top-tier technology and visibility:
-
Auto-dimming sensor for ideal brightness
-
87% larger programmable center LED
-
Standard or metric display (100–300°F / 40–150°C)
-
User-selectable warning thresholds
-
Peak/recall via face buttons
-
AEMnet CANbus-enabled for EMS or data logger integration
-
0–5V analog outputs for data transmission
-
33% larger display for improved readability
-
2-1/16" (52mm) housing, 0.825" slim depth
-
Positive locking connectors for secure installation
Approximate Build Time: 2 weeks
