Stewart Warner and ProBal Balancer Support
Reference and support resources for shops running older Stewart Warner and ProBal balancing machines. Whether you need parts, service guidance, or help deciding between repair and upgrade, T&S can help.
Stewart Warner balancing machines were widely used in automotive machine shops throughout the 1970s, 1980s, and 1990s. Many of these machines are still in service today because the mechanical sections were built to last. The challenge most shops face is not with the machine itself but with the electronics: aging analog measurement systems, discontinued display components, and control boards that can no longer be repaired or sourced.
T&S Machines has decades of experience with Stewart Warner balancing equipment and its successors. We can help you determine whether your machine needs a repair, a parts replacement, or a full electronics upgrade to ProBal's modern touchscreen system. In many cases, an upgrade is more cost-effective than sourcing obsolete replacement parts and gives you a machine that performs better than it did when it was new.
Common Questions
Can I still get parts for my Stewart Warner balancer?
Some mechanical parts are still available, but electronic components for older Stewart Warner machines are increasingly difficult to source. Circuit boards, display modules, and proprietary sensors from the original manufacturer are largely discontinued. T&S can help identify what you need and whether a repair or upgrade is the better path.
What is the difference between a repair and an upgrade?
A repair replaces a failed component with the same or equivalent part, restoring the machine to its original specification. An upgrade replaces the entire electronics package with a ProBal DBS touchscreen system, giving you modern measurement capability, software features, and ongoing support. Repairs make sense when a single component has failed and replacements are available. Upgrades make sense when the electronics are aging out across the board or when you want features that the original system cannot provide.
Will a ProBal upgrade work on my specific Stewart Warner model?
ProBal electronics upgrades have been installed on a wide range of Stewart Warner models. The upgrade replaces the measurement electronics and display while keeping your existing mechanical section. Contact T&S with your machine model and serial number, and we can confirm compatibility and provide a quote.
I have a ProBal machine from the early 2000s. Is it still supported?
Yes. ProBal continues to support machines from earlier production runs. Software updates, replacement parts, and technical assistance are available. If your machine uses an older version of the ProBal software, it can often be updated to the current ProBal DBS platform. Contact T&S for details on your specific machine.
How do I get training on my balancing machine?
T&S offers training at our facility in Gainesville, TX at no charge for customers who purchase a ProBal upgrade. On-site training at your shop is also available for a nominal fee. For existing machines, phone and remote support can often resolve operational questions without a site visit.
Reference Images
Need Help with Your Machine?
Call T&S at 940-668-1002 or send us a message with your machine model and serial number. We can help with parts identification, repair guidance, and upgrade recommendations.
Ready for a New Balancing Machine?
If your current machine is beyond repair or you are ready to expand your shop's capabilities, visit ProBal Dynamic Balancing for the full lineup of new crankshaft and driveshaft balancers.