Hey Guys,
I thought it would be nice to let you know I had my E34's steering box refurbished along with all the control arms and bushings. I can only say that the difference is remarkable. The improvement in directness is beyond what i expected. A little bit of play remains in the center but is no longer irritating. I guess that is just the set-up of the box. What i love the most is the feedback you get while drifting. Before, when in a drift, i had to correct a lot more and feedback through the steeringwheel was limited. Now i'm able to adjust and place the car within inches thanks to the new added directness. This applies not only for drifting but for spirited driving as a whole. Note that i have black powerflex bushings and a Bilstein B12 chassis.
The refurbishment was done by
www.hydroline.nl here in Holland and they used my bmw somewhat as a testcase. ''We'' found out that the older the steering boxes become the more things need to be refurbished. I'm not a technician so i'm not able to give all the ins and outs. Another thing is that ZF stopped refurbishing steering boxes and now focuses a full 100% on gearboxes. I also feel that I should thank them for all the effort they put in to help me!
If you have any questions feel free to ask them.