View Single Post
HarryD HarryD is online now
Registered
 
HarryD's Avatar
 
Join Date: May 2002
Location: Portland, Oregon
Posts: 12,794
Quote:
Originally Posted by Bill Verburg View Post
911 front suspension is by McPherson strut. The most common are Boge or Bilstein, Bilstein being the more sporting choice. The struts will have either 3" or 3.5" brake mounts. 3" is for M front calipers which is what your car came w/ when new. 3.5" is for S(alloy, used on early thru '75 S and Carrera versions) or A(iron, used from "76 to '83SC? Carrera) calipers or 930 alloy calipers. You don't need the 930s and probably not even the A/S calipers either but while in there why not. Your stock rear brakes are M rears, these have smaller pistons than the M fronts. A nice, recommended upgrade for the front would be 930 strut which come w/ 3.5" brake mounts for A or S calipers and Bilstein gas inserts, these can be revalved, The Boge struts are less sporting, cannot be revalved and also come w/ either 3 or 3.5" brake mounts.

In back you can use Boge or Koni or Bilstein(ether hd or sport versions), but you want to match f/r.
Bill,

Looking at the photos in the first post, it looks like he "may" have Koni struts. If so, I would think the best path forward is a rebuld to stock specs. Your thoughts?
__________________
Harry
1970 VW Sunroof Bus - "The Magic Bus"
1971 Jaguar XKE 2+2 V12 Coupe - {insert name here}
1973.5 911T Targa - "Smokey"
2020 MB E350 4Matic
Old 08-24-2023, 11:09 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #14 (permalink)