Tremec TR-4050 transmission
The TREMEC TR-4050 is a 5-speed manual transmission for longitudinal engine rear-wheel drive trucks produced by TREMEC. It includes one overdrive gear and a light-weight aluminum housing. New 4WD TR-4050 units are currently available in the United States.
Specifications for 4WD model TDET17341:
- Gear ratios: 
- 1st - 6.16:1
 - 2nd - 3.11:1
 - 3rd - 1.71:1
 - 4th - 1.00:1
 - 5th - 0.76:1
 - Reverse - 6.03:1
 
 - Torque: 600 lb⋅ft (810 N⋅m)[1]
 - Chrysler/Jeep Transfer case bolt circle with 23 spline output shaft
 - Oil capacity: 3.5 L (3,500 cc)
 - Weight: 164 lb (74 kg)
 - Length: 29.0 in (737 mm)
 - .590 in (15.0 mm) GM pilot diameter with a .750 in (19.1 mm) pilot on the optional Mopar input shaft
 - 1.125 in (28.6 mm) Input shaft diameter, 10 spline, GM/Mopar lengths available[2]
 
OE applications
- Chevrolet Silverado C3500 HD
 - Dodge Ram 3500 and 4000 (South American market)
 - Ford Super Duty F-350 (South American and Mexican market)
 
Retrofit applications
- Chevrolet C/K K models
 - Dodge D Series W models
 - 1966-1996 full-size Ford Bronco
 - Ford F-Series
 - Jeep CJ Jeep CJ-6, Jeep CJ-7, CJ-8 Scrambler
 - Jeep Wrangler YJ, TJ, JK
 - Jeep Cherokee SJ, XJ
 - Jeep Wagoneer SJ, ZJ
 - Jeep Gladiator SJ
 - Land Rover Defender
 
References
- ^ TREMEC as of 10/2/2020
 - ^ "TREMEC TR-4050™ Transmission - 5-Speed RWD Manual Transmission" (PDF). Archived from the original (PDF) on 2019-08-15.
 
- "TR-4050". TREMEC. Retrieved 2025-07-13.
 - Simons, Verne (10 November 2021). "NV4500 vs. TR-4050 Transmissions". Motor Trend. Retrieved 2025-07-13.
 - "Improve Jeep and 4×4 Performance with the TREMEC TR-4050 5-speed Manual Transmission". tremec-blog.com. 13 January 2022. Retrieved 2025-07-13.
 - Hill, Patrick (20 April 2022). "TREMEC Two-Wheel-Drive TR-4050 5-Speed Transmission Available Soon". tremec-blog.com. Retrieved 2025-07-13.
 - Headlee, Jake (25 February 2020). "The First Biodiesel Truck Gets Tremec TR-4050 From SST". Off Road Xtreme. Retrieved 2025-07-13.
 - Hill, Patrick (11 March 2025). "TREMEC Aftermarket Manual Transmission Gear Ratios". tremec-blog.com. Retrieved 2025-07-13.