Chassis Modifications
Our strong reputation for quality, reliability, and a lifetime warranty comes from 80 years of experience converting truck chassis. We cover a wide range of modifications — from wheelbase extensions to full truck tractor conversions.
Our Capabilities
Chassis Modification Services
Chassis modifications allow for the integration of specialised equipment and features tailored to specific functions or industries — including hydraulic systems, cranes, winches, and custom bodies for specialised cargo.
Wheelbase Extensions
Extend the wheelbase to accommodate longer body installations, additional axles, or specialised equipment. Full engineering certification provided with every job.
Wheelbase Shortening
Reduce the wheelbase for improved manoeuvrability or to meet specific body-to-chassis fitment requirements. Precision cutting with full structural integrity maintained.
Truck Tractor Conversions
Convert a standard truck chassis into a truck tractor configuration. BTS handles the complete conversion including fifth wheel mounting, air line routing, and electrical integration.
Our Work
Chassis Modification Projects
Trusted Expertise
Precision Chassis Engineering
BTS has spent eight decades converting truck chassis for the South African commercial vehicle market. Whether you need a wheelbase extended for a longer body, shortened for better manoeuvrability, or a complete truck tractor conversion — our workshop has done it before, on your make of truck.
Every modification is backed by our lifetime warranty. We don't cut corners — we use hot rolled steel channel for sub-frames, precision jig alignment, and thorough quality checks before any vehicle leaves our floor.
verified_userLifetime Warranty
Our strong reputation for quality and reliability is backed by a lifetime warranty on all chassis modification work. Decades of hands-on experience stand behind every job.
Integration Capabilities
Chassis modifications open the door for specialised equipment integration. We handle:
The BTS Difference
Why Operators Trust BTS
In-House Drawing Office
Every modification begins with a proper engineering drawing. Our CAD team produces detailed plans before any work starts on the chassis.
On-Site Fitment Team
Our experienced technicians handle every modification in our Johannesburg workshop. No outsourcing — from design to completion, it stays in-house.
80 Years, All Makes
We've converted chassis for every major truck brand operating in South Africa. There's no modification we haven't seen or done before.
Need a Chassis Modification?
Contact BTS today to discuss your chassis modification requirements. Our engineering team will provide a comprehensive assessment and quotation — backed by a lifetime warranty.