Every order is hand packed and personally shipped from Northern Michigan.
Depending on demand and weather, delivery may take 1-2+ weeks. A tracking number will be emailed to you once your order has shipped.
In addition to selling rebuild kits, we also offer in-house transmission builds.
Customers may ship their transmission/core to us for a complete rebuild using our Stage 1, Stage 2, or Stage 3 packages.
Labor is a flat rate of $1,200 plus the cost of parts selected below.
During teardown and inspection, if any hard parts or normally reusable components are found to be damaged or out of spec,
additional parts may be required at extra cost. We will always communicate this before proceeding.
There is no written warranty. However, if there is an obvious issue related to parts or workmanship upon installation,
please contact us immediately and we will work with you to make it right.
For build inquiries or support, please call +1 989-619-8484 or email [email protected]
Trent's Tuning Stage 1 300-400hp 4R70W/4R75E Transmission Rebuild Kit - the ultimate starting point for a complete rebuild, designed for reliability, smooth shifting, and mild performance. Stage 1 is primarily stock/OEM replacement parts, with upgraded or reinforced components where needed to fix known issues and extend transmission life.
Every part in this kit is personally tested and used in my own F150 and all customer builds to ensure durability and performance.
Parts included:
Sonnax Smart-Tech High Capacity Forward Clutch Drum Kit - stronger and more reliable than stock
Raybesto Red Clay Friction Module - stronger and more reliable than stock friction pack
Paper & Rubber Ring & Seal Overhaul Kit - complete sealing kit for a leak-free rebuild
Sonnax ZIP Kit - addresses common valve body issues and prevents leaks
Steel Plates Kit - OEM-spec replacement steels
Bushing Kit/Set - replaces worn bushings for smooth operation
Reverse (Rear) Band - direct replacement for reliable reverse engagement
Pro Series Front Band - direct replacement for stock durability
Super Tuff Separator Plate - reinforced plate for extended life
This Stage 1 kit gives you everything needed for a complete rebuild with confidence. It's ideal for daily drivers, mild towing, or mild performance builds, giving your 4R70W/4R75E transmission a fresh start with all critical fixes and upgrades included.
Trent's Tuning Stage 2 450-600hp 4R70W/4R75E Transmission Rebuild Kit - built for serious performance and heavy-duty reliability. Unlike Stage 1, this kit goes beyond stock replacements, including upgraded clutches, billet shafts, reinforced components, and fixes to known weaknesses in the 4R70W/4R75E transmission.
Every part in this kit is personally tested and used in my own F150 and all customer builds to ensure maximum reliability and performance under higher power levels, towing, or aggressive driving.
Parts included:
Sonnax Smart-Tech High Capacity Forward Clutch Drum Kit - improved durability for high-load applications
Raybesto Blue Plate Friction Module Clutches - upgraded friction packs for smooth, consistent shifts
Pro Series Front Band - reinforced for performance use
Elevated Pressure Regulator Spring - increases line pressure for firmer, more responsive shifts
Super Tuff Separator Plate - reinforced plate for durability under high torque
This Stage 2 kit is designed for 450-600hp builds, heavy towing, or aggressive driving. It provides a complete, professional-grade rebuild with all critical upgrades included, giving your 4R70W/4R75E transmission the strength and reliability needed for higher performance applications.
Trent's Tuning Stage 3 650-800hp 4R70W/4R75E Transmission Rebuild Kit - our most heavy duty, performance oriented rebuild. Stage 3 is designed for high horsepower builds, aggressive towing, and drivers who demand maximum reliability under extreme loads.
Every component in this kit is personally tested and used in my F-150 and all customer builds to ensure that your transmission can handle 650-800hp safely, with smooth shifting and long term durability.
Parts included:
Sonnax Smart-Tech High Capacity Forward Clutch Drum Kit - reinforced for high-load performance
Raybesto Blue Plate Friction Module Clutches - upgraded friction packs for extreme power handling
Billet Intermediate Stub Shaft - eliminates weak OEM shaft failures under high torque
Billet Input Shaft - high-strength shaft for 650-800hp builds
TransGo Shift Kit Stage 2 - optimized shift timing and feel for high-performance applications
Paper & Rubber Ring & Seal Overhaul Kit - all new gaskets, rings, and seals for a leak-free rebuild
Raybesto HP Kolene Steel Clutch Pack - heavy-duty steels for maximum torque capacity
Heavy Duty Forward Sun Gear - reinforced for extreme load handling
Sonnax ZIP Kit - fixes valve body issues and prevents leaks under high pressure
Steel Plates Kit - upgraded steels for extreme durability
Bushing Kit/Set - replaces worn bushings for smooth, reliable operation
Reverse (Rear) Band - reinforced for heavy-duty reverse engagement
Pro Series Front Band - reinforced for high-load durability
Elevated Pressure Regulator Spring - increases line pressure for firmer, more responsive shifts
Super Tuff Separator Plate - reinforced for extended life under high torque
Stage 3 gives you a complete heavy duty rebuild capable of handling 650-800hp, aggressive towing, or extreme performance applications. All critical upgrades are included, giving your 4R70W/4R75E transmission unmatched strength and reliability.
