Twin Turbo

Does anyone know if the front hubs are the same from a 1978 911 sc to a 1988 911 carrera. I would like to know the size that they stick out from the rotor if possible. I was curious to run turbo hubs instead of factory hubs to eliminate running a spacer on a turbo bodied car. I believe there is an inch difference between the 2. Any info would greatly be appreciated!!
TIA

rusnak

I can compare a 78 to an 84. I think they are the same hub.

theiceman

maybe you could check the parts lists on the Porsche web site and see if the are the same part number ?

ron mcatee

They are the same P/N. 911-341-065-06, fits SC's and Carrera's through 89.

rusnak

Here's a pic of the 3.2 hub w no spacer. 55cm. I just happened to be working on the front bearings today.

theiceman

Good job guys .. problem solved ..

Twin Turbo

Perfect!! Thank you you da man

Twin Turbo

That seems to be about 14mm for the carrera or sc hubs and 28mm for 930 turbo hubs, 1/2'' difference

altonj

The Turbo front hub difference (IIRC) is 21mm. Be careful with the measurement as the rotors are different thickness..... The early 930 cars had a 21mm spacer and used the SC hub, the later cars did not use a spacer and had the 930 hub.....

Cheers

Twin Turbo

You are saying there is a 21mm difference between a newer 930 and a 911 sc/carrera? Which is almost an inch.

rusnak

I have no idea about the 930, but the SC does have slightly thinner rotors, so the comment about rotor thickness is a good one.

Twin Turbo

I'm referring to the hub size rather than the rotor size between the 2 vehicles