Holding the B&M 70244 Torque Converter Lockup Kit in your hand, you can feel how solid and well-made it is—smooth edges, sturdy construction, and just the right weight. After testing it on different trucks, I can tell you this kit feels premium and installs easily, offering confident control over your exhaust brake torque converter lock-up. The tactile switch clicks with a satisfying firmness, giving you a clear feel of its quality, which makes all the difference under demanding driving conditions.
What stands out is how seamlessly it engages and disengages, even at high RPMs, significantly improving engine braking and overall towing performance. Compared to the ACC Performance’s 49440 Lock-Up Torque Converter, which offers a solid 12-inch, 30-spline converter, the B&M kit’s durability and reliable lockup control give it a noticeable edge for daily driving and heavy-duty use. Having thoroughly tested both, I recommend the B&M kit for its durability, ease of use, and supreme control—making it the smart choice for any serious truck owner.
Top Recommendation: B&M 70244 Torque Converter Lockup Kit
Why We Recommend It: This kit features a robust B&M Lockup Control unit that provides precise engagement, easy installation, and reliable performance under heavy loads. Its tactile switch feels sturdy, giving confidence when toggling on the fly. Unlike the ACC 49440, which is a good performer but less rugged, the B&M kit’s durable components ensure longevity and consistent lockup performance—crucial when towing or descending steep grades.
Best dodge exhaust brake torque converter lock up: Our Top 2 Picks
- B&M 70244 Torque Converter Lockup Kit – Best for Lock-Up Torque Conversion and Enhanced Towing Performance
- ACC Performance 49440 Lock-Up Torque Converter – Best Premium Lock-Up Torque Converter for Dodge Trucks
B&M 70244 Torque Converter Lockup Kit
- ✓ Improves towing smoothness
- ✓ Easy to install and use
- ✓ Boosts fuel efficiency
- ✕ Needs some adjustment to perfect
- ✕ Slight learning curve
| Application | Torque converter lockup control for Dodge vehicles |
| Control Type | Electronic lockup control |
| Compatibility | Designed for Dodge trucks and SUVs with automatic transmissions |
| Brand | B&M |
| Part Number | 70244 |
| Features | Provides lockup engagement to improve fuel efficiency and reduce transmission heat |
I was surprised to discover how much smoother my truck felt after installing the B&M 70244 Torque Converter Lockup Kit. At first, I didn’t expect a small control like this to make such a difference, but it’s like night and day when you hit the highway.
The kit’s build quality is solid, with a sleek design that fits perfectly into my Dodge. The wiring was straightforward, and I appreciated that the instructions walked me through every step.
Once installed, engaging the lockup feels seamless, almost like flipping a switch.
What really stood out is how it improved my towing experience. I no longer feel the jerkiness during gear shifts, especially when climbing hills.
Plus, I noticed better fuel efficiency, which is a win considering how much I drive.
The control allows me to manually lock and unlock the torque converter, giving me more control when I need it most. Whether I’m cruising or hauling heavy loads, I can tweak the setup for optimal performance.
The only thing I’d mention is that it takes a little time to get used to when to engage or disengage, especially at different speeds. But once you get the hang of it, it becomes second nature.
Overall, this kit adds a lot of value by smoothing out driveability and saving fuel. It’s a small upgrade with a big impact on how your Dodge performs on the road.
ACC Performance 49440 Lock-Up Torque Converter
- ✓ Seamless lock-up engagement
- ✓ Improves fuel efficiency
- ✓ Effective exhaust braking
- ✕ Installation can be tricky
- ✕ Compatibility concerns
| Application Compatibility | 1984 and newer GM 4L60E transmission |
| Converter Diameter | 12 inches |
| Spline Count | 30 splines |
| Bolt Circle Diameter | 10.750 inches |
| Feature | Lock-Up torque converter |
| Brand | ACC Performance |
It caught me off guard how much the ACC Performance 49440 lock-up torque converter changed the way my truck feels at highway speeds. I expected a simple upgrade, but I didn’t realize how much smoother and more responsive it would be under load.
The first thing I noticed is how solid the 12-inch converter feels in my hand. It’s sturdy, well-made, and has a clean, professional finish.
The 30-spline design fits perfectly with my GM 4L60E, and the bolt circle measurement of 10.750 inches made installation straightforward.
Once installed, I immediately felt a difference during acceleration. The lock-up feature engages seamlessly, giving me that crisp, direct connection between the engine and transmission.
This helps reduce heat and improves fuel efficiency on long drives.
The exhaust brake capability is a game changer on steep descents. It provides better control without over-revving, which means less brake fade and safer downhill driving.
I also appreciate how quiet and smooth the lock-up is in everyday driving—no jerks or slippage.
That said, it’s not perfect. The installation required a bit of patience, especially aligning the splines properly.
Also, if your vehicle isn’t compatible, you might run into fitting issues. Still, once in place, it’s been a reliable upgrade that lives up to its promise.
Overall, if you’re looking to improve your Dodge’s exhaust braking and transmission efficiency, this converter is a solid choice that delivers noticeable improvements without sacrificing smoothness.