eTrailerParts Branding linked to home.

Drop Axle Assembly – 32mm thick

Wholesale prices are available to approved account customers only.

SKU: N/A Category:
Pay by credit card or paypal.

32mm Axle Drop Plates to suit 45mm to 50mm steel axle beams

32mm axle drop plates lower axles by 3-inch or 4-inch.  Plates to fit a variety of 45mm and 50mm axles and stubs.

Suitable for horse floats and boat trailers. OEM prices are available.

Question: What size drop plates are available to lower my caravan

Answer: Drop plates lower the height of the axle from the ground to suit various size stub axles and beams.

  • 45mm Square Beam to 45mm round Stub - 3-inch - CM185
  • 45mm Square Beam to 45mm round Stub - 4 inch - CM190
  • 50mm Square Beam to 45mm round Stub - 4 inch - CM191
  • 50mm Square Beam to 50mm round Stub - 4-inch - CM192
  • 50mm Square Beam to 56mm round Stub - 4-inch - CM193


The thickness of the drop plates is critically essential. Plates installed on axle assemblies less than 32mm in width can result in disastrous consequences.

The IRS in the photo has been built with a 25mm drop plate. The 25mm plate was used because the 9" mechanical assembly rated at 1000kg was considered a lightweight application.

Couplemate recommends using Australian-made 32mm drop plates cut from virgin steel.

However, the 9" brake setup uses an unbraked tandem trailer 2000kg setup.

The drop plate was not engineered well enough to prevent shock loading when the rig hit a gutter on a roundabout.

Additionally, installing bearing buddies on drum-braked axles is not a good idea. Excess grease contaminates brake shoes rendering them ineffective during a braking event.

Finally, all drop plate assemblies built by Couplemate are 32mm wide. Some narrower plates can twist under extreme loads and cornering. This action stresses u-bolts and other suspension trailer parts like shackles and bearings.

Additional information

Dimensions3 × 10 × 20 cm

4" Drop, 3" Drop