Do Purple Line / Opus Sell or Recommend Weight Distribution Hitches (WDH) with the DO35?
Do Purple Line LLC sell, stock, recommend or supply weight-distribution hitches or friction sway-control bars.
Short answer: No – we do not sell, stock, or supply weight-distribution hitches or friction sway-control bars, and we do not officially recommend any specific brand except where noted below.
Official Purple Line LLC Position (December 2025)
| Question | Answer | Details |
|---|---|---|
| Does Opus sell an adapter for WDH on the DO35? | No | We do not carry or sell any WDH adapter. |
| Do we test or warranty Opus trailers with WDH or sway bars? | No | Opus trailers have never been tested by Purple Line LLC with weight-distribution hitches or friction sway bars. Use is at owner’s risk and does not affect standard warranty unless damage is directly caused by the device. |
| Is an adapter required for highway-only use? | Not from us | The DO35 pin box itself is not designed for traditional WDH spring-bar attachment points. Some owners fabricate or source third-party solutions; we do not provide or endorse them. |
| Has Cruisemaster (manufacturer of the DO35) ever approved a specific brand? | Yes – one brand only | Cruisemaster has explicitly confirmed compatibility with Hayman Reese weight-distribution/sway-control systems (both single-friction and Dual-Cam HP models). |
| Hayman Reese technical match to DO35 | Exact fit | Hayman Reese heads have a 1" threaded hole that accepts the standard pin supplied with every Cruisemaster DO35 kit – no adapter needed when using Hayman Reese. |
If You Still Want to Run WDH or Sway Control (Highway Only)
- Only approved combination we are aware of:
- Cruisemaster DO35 (all versions)
- Hayman Reese WDH or sway-control bars (Classic, Medium, or Heavy Duty series)
- Further details on the Hayman Reese WDH and DO35 set up can be found on this link - https://cruisemaster.com.au/content/cis/008%20Cruisemaster%20WDH%20Adaptors.pdf
- Critical reminders
- Remove or disconnect the system before any off-road or articulation-heavy driving – the DO35 needs full 360° + 70° vertical articulation that WDH severely restricts.
- Confirm loaded tongue weight stays within 10% of trailer GVM and under the 350 kg (772 lb) DO35 pin limit.
- Research your specific tow vehicle receiver and drop/rise requirements – we cannot advise on vehicle-side setup.
Bottom Line for Opus Owners
- Purple Line does not sell, stock, or provide technical support for WDH systems.
- The only brand Cruisemaster has verified as a drop-in fit is Hayman Reese (uses the factory DO35 pin – no adapter required).
- Any other brand or DIY solution is owner-installed and owner-researched.
Need the exact Hayman Reese model for your Opus? Reply to any support ticket or call us at 925-215-7315 – we’ll look up your trailer’s ATM and point you to the correct Hayman Reese part number carried by most Australian towing specialists (widely available in the USA via importers).
Safe towing – see you on the highway (and off it).