Build your F350 Super Duty to work harder and last longer. From E4OD and 4R100 to TorqShift 5R110 and 6R140, our dyno-tested Monster builds fix factory weak points and add the strength your F-350 needs for towing, hauling, and daily duty.
F-350 trucks live under load. We target known failure points—heat, clutch capacity, and converter failure—using upgraded frictions/steels, recalibrated valve bodies, and matched torque converters. The result: crisp shifts, cooler temps, and serious durability.
Ideal for late-80s to ’90s F-350s, we address common weaknesses like overdrive clutch burn and EPC/valve body wear to restore towing confidence and longevity.
Built for 7.3L Power Stroke and modular gas engines, our 4R100 units add clutch capacity and line-pressure control to survive heat and heavy loads.
TorqShift for 6.0L/6.4L Power Stroke. We combat converter clutch distress and thermal breakdown with better hydraulics, cooling, and clutch capacity.
The modern 6-speed for 6.7L Power Stroke and 6.2L gas. Our updates improve clutch durability, converter lock-up control, and thermal stability under tow.
Use year and engine as a quick guide below (always verify by tag/VIN when possible):
| Transmission | Engine(s) | Typical Model Years |
|---|---|---|
| E4OD | 7.3L IDI, 7.5L V8, 5.8L/5.0L (Gas) | ~1989 – 1997 |
| 4R100 | 7.3L Power Stroke Diesel; 5.4L/6.8L (Gas) | ~1998 – 2003 |
| 5R110 | 6.0L & 6.4L Power Stroke Diesel | ~2003.5 – 2010 |
| 6R140 | 6.7L Power Stroke Diesel; 6.2L (Gas) | ~2011 – 2019 |
Purpose-built upgrades, dyno-verified results, and a team that stands behind every build.
Targeted fixes for Ford weak points—improved clutch capacity, better lubrication, and stronger lock-up control.
From tow-friendly single-disc to performance multi-disc, we’ll match stall and lock-up to your setup.
Every transmission is tested through a multi-point cycle before it ships—install with confidence.
Talk to specialists who build these units every day—get the right recommendation the first time.
Industry-leading coverage for real peace of mind on work sites, highways, and job routes.
Streamlined logistics and core return make the process simple so you get back to work faster.
Your top questions about upgrading and identifying your F-350 transmission—answered.
Yes—many people say “5R100,” but the correct Ford designation is 5R110 (TorqShift). Our builds and parts support cover this transmission regardless of the label.
For stock to moderately tuned trucks that tow regularly, choose our Heavy Duty StreetMonster build. For larger trailers, higher power, or commercial duty, step up to Sport/Track with billet/converter upgrades.
In most cases, yes. Our remanufactured valve bodies, calibrated line-pressure strategies, and upgraded frictions/steels restore crisp, consistent shifts and reduce heat.
Use the year/engine guide above, then verify on the transmission tag or via VIN. If you’re unsure, call us and we’ll help identify it quickly.