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Join Date: Jun 2017
Location: doylestown, pa
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76 911 Front sway bar upgrade 20mm / fitment issue, hitting master cyllinder

so i have a 76 911.

with an upgrade aluminum cross member and later style control arms.

the 20mm sway bar hit the master cylinder.

this is how the car came and we are trying to get this fixed up.. last issue in a front end resto..

is there a certain year 20mm that is correct?


Old 08-16-2018, 02:52 PM
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Crazy sideways picture is hard to understand - but this is what a stock setup looks like:

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1975 911s and 2012 Range Rover Sport HSE
1962 BMW R50/2, 1995 BMW R1100RS, 1948 Harley FL
Old 08-16-2018, 05:24 PM
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We have plenty of newer stuff for reference. It seems to be the conversion with the newer undercarriage parts and the 20mm.


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Old 08-16-2018, 06:11 PM
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But didn't we figure 20mm was the stock size?

1. Is the sway bar bent?
2. Are the mounts for the sway bar bushings bent?
3. Is it back on there correctly? With the removal of the front suspension component for the tub fix, maybe something went back in wrong?
4. The cover plate was on the car right?

Just trying to brainstorm - and free bump. Good luck!
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Old 08-16-2018, 08:30 PM
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Quote:
Originally Posted by 75 911s View Post
But didn't we figure 20mm was the stock size?

1. Is the sway bar bent?
2. Are the mounts for the sway bar bushings bent?
3. Is it back on there correctly? With the removal of the front suspension component for the tub fix, maybe something went back in wrong?
4. The cover plate was on the car right?

Just trying to brainstorm - and free bump. Good luck!
The sway bar was not on the car when I received it. I only see one way of this bar going on, but in order to get the mounts on the bar is mashing the master
Old 08-17-2018, 01:54 AM
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Sway bar installation.........

Did you try to install the roll bar the other way placing the bend downward instead of upwards? Keep us posted.

Tony
Old 08-17-2018, 04:09 AM
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Quote:
Originally Posted by boyt911sc View Post
Did you try to install the roll bar the other way placing the bend downward instead of upwards? Keep us posted.

Tony
Still rubs on master. Not as bad but definitely makes contact
Old 08-17-2018, 05:34 AM
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Maybe the sway bar came from a newer car, the master was moved in 77 or 78 (denpending on market) to the trunk.
If its just a little, make a small spacer...

Edit:
The above shouldn't matter when I think about it becauase I have a newer 3.2 swaybar and it doesn't touch.
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Last edited by safe; 08-17-2018 at 06:13 AM..
Old 08-17-2018, 06:09 AM
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Sort of anecdotal, but when I got 4 new bushings to replace for the sway bar, I was unable to remove the sway bar due to tension on the A-arms. In other words, I figured I'd have to remove one of the a-arms to get the sway bar out. As a result, I've only replaced the two bushings that are not on the A-arms. I measured my sway bar on my 75 with the brake cylinder in the same spot. it's 20mm also.

I just had a thought as I was typing this, what if you need to push the sway bar further into the a-arm side bushings (which you can't do because perhaps you haven't removed one a-arm) so therefor the back is sitting too high as a result. Sorry if this is way off base, it's been several years since I worked on the front end.

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Old 08-17-2018, 06:36 AM
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