Trailing Arm to Torsion tube - Washers?

[jamesjedi]

Hi,

As always, looking for help. My car is 1977 911S.

I am reassembling the rear suspension. Does the trailing arm, where it bolts to the torsion tube require washers. I have spherical bearings, but I do not think that they have anything to do with the washers.

The long bolt is fastened with some kind of "lock nut". It has a very thin in profile. It does not look like the most durable nut.

Help would be appreciated. Thanks.

[E Sully]

I took a look at my '73, and it appears to have washers.
Also, in this picture from the parts forum, the trailing arm bolts on the left for a 1971 have washers.


Here is the PET for 1977. It shows one washer on the nut side, same as 1973 PET.

[jamesjedi]

Thanks for the reply and parts diagram. Is part #3 (block and washer), a part of the bushing assembly? As I have a spherical bearing, would I need just the one washer?

I found a similar PET for the 911SC, it looks the same.

It says an M14 locking nut. Is that a nylock nut? I would have thought that is would require something more substantial?