It seems as if my lack of basic 911 knowledge has landed me in trouble again.

I am trying to order some 'quick' rack and pinion kits for our rally cars both of which have early ZF racks fitted. (Shim adjustment type). We would like to use a 2.3 turns unit. I understand that these used to be available from Kokeln Racing but when I called they said that they had ben discontinued.

I was going to order a small batch of parts rather than stand the design and set up costs on just a couple of units.

I have just learnt that the later racks which I think were also fitted to 914s have different internal design and self-compensate for wear.

I have a few questions.

1. Do the later racks still bolt into the early SWB cars

2. Is the rack bar and the hence the pinion different in the later racks.

The ratio of the SWB racks that I have are 2.7 turns lock to lock. Is the turns ratio different on the later units?

I would like to make parts that can be used on all carts fitted with manual steering.

Sorry to keep picking every ones brains but my only alternative is to buy and strip out a later rack.

Thanks again.