Here's what I've done to my Tandem Axle Trailer so far...
- Removed all electrics, brake cables, bunks winch post/ladder/Jack.
Remove old rusted mudgaurds and mounting brackets
Cut out old rusted drawbar, ground back any signs of corrosion and treated every patch with Action Rust Removal Gel http://www.actioncorrosion.com.au/produ ... moval-gel/ .... This stuff is gold!!!
Fabricate new Goal Posts out of 3mm galvanised tubing .... Tubes let water to escape at the bottom
Fabricate new rear/side bunks out of 4mm galvanised flat-bar
Weld up that stupid hole that Macgregor drilled at the back of the drawbar!!
Align and weld new drawbar - 75x75x5mm Box section Tubing Galvanized inside and out
Drill new hole on top of drawbar which allows the welds to be painted on the inside and doubles up as a periodic inspection port.
Weld new adaption brackets for 2000Kg Tow ball coupling .... I did not use the commonly available coupling adaption plate as these are a major reason for draw bar rust.
Align and weld on winch post/ladder/Jack
Had the whole trailer sandblasted and sprayed the 1st coat of POR-15 (Rust Preventive Coating http://www.por15.com/POR-15_Rust_Preventive_Coating ) today.
All the best.