QUOTE(Niklas @ Dec 10 2010, 09:51 AM)
What is the difference between 911 and 914 front suspension?
Depends on which years you're talking about but the short list is as follows;
- The struts have wider caliper mounting holes for bigger brakes (wider variety)
- The cross-member is steel on the 914 and aluminum on the 911
- The torsion bars are splined differently so you have to know which when you re-spring the front. I've heard talk that there may be a bigger variety of 911 torsion bars than 914, but I've never had any trouble finding either. Perhaps I'm just lucky!
- Shock inserts are different on the 914 but in general, the Boge struts can accept Bilstein or Koni inserts as long as they're meant for the 914 specifically.
- Bilstein struts require Bilstein inserts. Apparently there was at least one year when the Bilstein's came on the car, or it could be ordered with them. I don't know those details.
You can put 911 struts on the 914 bits. I have Bilstein struts on my otherwise original 914 A-arms.
Regardless of which you choose, when the tie-rods are replaced, do it with a turbo tie rod kit.
Others more anal than I will fill in the blanks in the above description
Good luck