Thanks for the interest in the spindles, we are really pleased with the results and are looking forward to getting more out there on some nice early (and late) bays.
Here's a bit more info for those of you who have emailed and shown an interest in general (sorry it's a bit long winded and I hope it makes sense).
The spindles are not a new idea and have been developed and tested on buses since around 2004. I am not the inventor, that credit goes to my good friend Marco from the now defunct Slammed Panel in Holland. We have very slightly changed the way that the ball joints are held into the arms and also have taken advice from Marco on the best ball joint to use, which is a super tuff USA made ball joint. Our product development engineer @ T2D (Mark Van Driel) has checked and checked again the suability of the ball joint and has given us guidance in how to make double sure it will never pull out of the arm.
In Brief the Spindles are modified/machined to allow you to run a reversed ball joint, which in turn allows the spindle to run above the arm instead of underneath, hence giving the 3-1/2 inch drop. This is the simple part, the hard part was knowing which ball joint to use and working out how to secure it into the arm safely
Actually, friction in most cases would normally be enough to hold the ball joint in place, anyone that has ever used a 10 ton press to fight ball joints out of arms will know this. However we have machined a groove in the side of the ball joint to allow the fitment of a round security ring, this ring then fits into a channel which we have bored into the trailing arm. The channel in the arm is only a fraction bigger in diameter then the diameter of the ring on the ball joint and will not allow the ring to move or fall out of the groove in the ball joint even if the ring itself breaks.
We have seen this design on cars, vans and Hotrods and know that it is safe.
This method would be pretty easy to copy but we know the key to this product working for us was finding the right ball joint, therefore any future replacement ball joints will need to be purchased from us at a cost of about £50
We took months setting up a good supplier for these ball joints and inspected dozens of other makes of ball joints which wouldn't work with reversed load so I really hope that someone else doesn't try to copy this product using cheaper off the shelf joints which could fail.
Marco at Slammed Panel is no longer working with VW's full time so has given us and Kieft en Klok his blessing to carry on his good work where he left off.
The whole kit which includes 4x machined arms with ball joints fitted, along with the spindles is £650 exchange.
We have been thinking about having an open workshop day where you can come and see the spindles being fitted and watch while a van gets a full T2D slam job, there would be a small charge to cover a buffet lunch and refreshment.. and a small discount offered at the end of the day for anyone wishing to buy products Would we have any takers??
Regards to you all
Paul