Kenworth Class 8 and medium-duty trucks are now available with Allison Transmission's Load-Based Shift Scheduling as a standard feature on select Allison transmissions.
Allison Transmission Load-Based Shift Scheduling Standard on Kenworths
Kenworth Class 8 and medium-duty trucks are now available with Allison Transmission's Load-Based Shift Scheduling as a standard feature on select Allison transmissions

LBSS automatically selects between economy and performance shift schedules based on the vehicle's actual payload and the grade on which it is operating. This optimizes fuel economy while maintaining high productivity capability, even during heavily loaded situations.
Using advanced algorithms to calculate real-time vehicle load and operating grade, LBSS selects the appropriate shift schedule for the task at hand. It is calibrated to primarily use the Economy mode, but automatically selects the performance mode when conditions require it. LBSS is part of the standard Shift Energy Management (SEM) calibration for approved engines.
On trucks with Allison 3000 and 4000 series models, the LBSS allows the mode button on the transmission's shift selector to be programmed for controlling other vehicle functions, such as body builder functions or power takeoff (PTO) operation.
On trucks with Allison 1000 and 2000 series transmissions without a shift schedule dash switch, LBSS automatically performs the shift schedule selection for the driver, eliminating the need to manually select the transmission shift schedule for economy operation.
More info: www.allisontransmission.com
More Products

Fontaine Expands Flatbed Lineup with New Fleet-Focused Models, Eyes 2027 Launch
Fontaine is broadening its flatbed lineup with new models aimed at fleets, including a lightweight aluminum trailer expected in 2027 that emphasizes durability, repairability, and lower cost.
Read More →Fontaine's Fleet-Focused Force Flatbed Prototype [Watch]
A new prototype from Fontaine Trailer focuses on what fleets say they need most: easier repairs, lower maintenance costs, and practical, service-friendly design.
Read More →
HDT Honors the Best New Products of 2025 at TMC [Photos]
Heavy Duty Trucking's Top 20 Products awards recognize the best new products and technologies. Check out the award presentations at the 2026 Technology & Maintenance Council annual meeting.
Read More →
Detroit Engines: Trusted Performance, Built for What's Next
The Detroit® Gen 6 engine platform proves that real progress doesn’t require a complete redesign. Built on 20 years of trusted technology, these engines are designed for efficiency, stronger performance, and greater reliability than before. And they do it all while complying with 2027 EPA standards on every mile.
Read More →
Smarter Maintenance Strategies to Keep Trucks Rolling
In today’s cost-conscious market, fleets are finding new ways to get more value from every truck on the road. See how smarter maintenance strategies can boost uptime, control costs and drive stronger long-term returns.
Read More →
HDT Top 20 Products 2026: The New Tools, Technologies, and Ideas Shaping Trucking
From pricing intelligence and compliance tools to charging infrastructure, diagnostics, tires, and AI, HDT’s 2026 Top 20 Products recognize the new tools, technologies, and ideas heavy-duty trucking fleets are using to run their businesses.
Read More →
Geotab Launches AI-Powered GO Focus Pro Dash Cam With 360-Degree Visibility
Geotab launches GO Focus Pro, an AI-powered 360-degree dash cam designed to reduce collisions, prevent fraud, and protect fleets from nuclear verdict risk.
Read More →Reducing Fleet Downtime with Advanced Diagnostics
This white paper examines how advanced commercial vehicle diagnostics can significantly reduce fleet downtime as heavy duty vehicles become more complex. It shows how Autel’s CV diagnostic tools enable in-house troubleshooting, preventive maintenance, and faster repairs, helping fleets cut emissions-related downtime, reduce dealer dependence, and improve overall vehicle uptime and operating costs.
Read More →6 Dashcam Tactics to Improve Safety & ROI
6 intelligent dashcam tactics to improve safety and boost ROI
Read More →
Basic Tracking vs Next Generation Fleet Technology
Fleet software is getting more sophisticated and effective than ever, tying big data models together to transform maintenance, safety, and the value of your existing tech stack. Fleet technology upgrades are undoubtedly an investment, but updated technology can offer a much higher return. Read how upgrading your fleet technology can increase the return on your investment.
Read More →
