A few years back we had some set of 2.2 trailing arms made in Denmark. A machine shop known to one of our members laser cut pates for ten set of trailing arms. As a part of the original trailing is needed to produce the new set, we handed over our old set and had a new set made. I got the first set myself.
The steel plate for our reconstructed trailing arms had a better quality than the original and as we used a thicker plate the new trailing arms only had one layer of steel plate all way around. The original trailing arms had two layers on the sides.
The original trailing arms rust mainly from inside and between the two layers of plate.
Therefore I closed my trailing arms completely, drilled a hole on the upper side poured in some rust protecting oil, and then closed the hole with a plastic plug. Not stainless but I am sure that my trailing arms “will last forever”
Maybe the drawings or files for controlling the laser cutting machine will still be available at the machine shop.
If you are reproducing some trailing arms please have in mind that stainless steel does not have the same strength as normal steel.
Since the trailing arms being made on the continent are in fact incorrect, as well as costly, I am investigating having some made in the U.K. Now it may turn out that it will not be economic, or there is insufficient demand and to make the unit price reasonable we need a minimum number, but at this stage it is only an investigation into the possibility, so nothing to lose yet.
Since you say that some drawings had been made Hans, and maybe are still available, would you be prepared to find out if they are available, and if they would want any charge to let us have copies? Thanks.
BTW what were those Danish trailing arms like? Good quality and accurate? Did anyone recheck their suspension alignment afterwards to make sure the geometry was exactly the same as the original? How did the cost work out - similar to those commercially sold or more expensive (or cheaper)?
If anyone is interested or in need of new rear trailing arms I would be pleased to hear from you (direct email please) and I will keep you informed of any progress.