This may sound complicated but in fact it is very simple. Every single leaf will have the shape of a multi leaf spring and thus it's capable to cope with the same forces inside the leaf. This means that the ideal parabolic springs would have only one leaf but due to risk of loosing the axle when a breakage occurs we decided to design every spring with a minimum of two leaves where the second leaf-end is wrapped around the eye (end) of the main leaf to secure the axle at all times.
Although I can't find anything on their website, I know these guys have springs for 40 series cruisers. One of their neighbours has had a set installed on his V8J40 for over a year now. They are located just down the road from me in West Vancouver, BC. Quite competitively priced at around cad$1000-$1200 for springs, bushings, shocks, shackles, U-bolts. They have a really nice ride (approaching OME quality). They are tuned for slightly less weight capacity and smoother ride, rather than harsh when unloaded and a greater weigh capacity. Definetly a good value for the $$$ considering they are a third to half as much as OME.
It would be alot easier to get stuff shipped to the states from Canada, rather than from the Netherlands.....
I hate to mention a name, without permission, but PM TOZOVR. I think he was going to bring a set in. I still would like to see how long they last without sagging.
I did fit Parabolics to my 60 and bought from this company. If you go to the 60s section and look at the FAQ thread at the top, my thread on parabolics is in there.
The springs fit, the company was very helpful and the ride / lift is nice.
i have those springs for my bj45 pickup
the back springs have 3 leaves i am installing the springs this weekend
and wen they work wel i want to go soa whit them
