Rear bannana arms

An archive of any Porsche 911 technical threads

Moderators: hot66, impmad2000, Barry, Viv_Surby, Derek, Mike Usiskin

Post Reply
Derek
DDK rules my life!
Posts: 1179
Joined: Fri Jan 23, 2004 2:10 pm
Location: Shropshire

Rear bannana arms

Post by Derek »

Hi

I want to fit alloy arms to my 1970 911.

I have been offered 3.2 Carrera arms.

Will they fit?
1970 911 3.6T
Nick Moss
Nurse, I think I need some assistance
Posts: 9424
Joined: Sat Nov 08, 2003 6:59 pm
Location: East Sussex
Contact:

Post by Nick Moss »

Luke Hudson has done this recently, I am sure he will tell all. I know that he needed to change the flange wjere the studs are mounted, and had problem mounting the damper as the bolt diameter and length changed.
Nick Moss - early911.co.uk - Fuchs refurbishment
07980 017994
nick@early911.co.uk
Lightweight_911
Nurse, I think I need some assistance
Posts: 16856
Joined: Wed Nov 12, 2003 10:48 pm
Location: Worcs/W Mids border

Post by Lightweight_911 »

Derek - they will fit but if you're not in a hurry I would try & find a pair of the earlier '74-'75 aluminium trailing arms. These utilise the same rear antiroll bar fixings as your car (as did the '76 & '77 version) but the post '75 arms can cause interference with the '71 & earlier outer CV joints.

You will also need to change the rear shocks for the later versions with the different lower mount & may need to grind down a little bit of the flange on the lh heat exchanger to clear the aluminium arm.

Make sure you get the rear hubs with the trailing arms & use them - otherwise you will have to machine your original hubs to get them to seat correctly.
Andy

“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
Derek
DDK rules my life!
Posts: 1179
Joined: Fri Jan 23, 2004 2:10 pm
Location: Shropshire

Post by Derek »

thanks for the help, I think I will look for an earlier set.
1970 911 3.6T
Luke
DDK rules my life!
Posts: 1188
Joined: Thu Nov 13, 2003 8:37 am
Location: London & Ringwood

Post by Luke »

Andy's covered it all there!

get 1974-5 arms , if you get carrera arms i belive you have to get new CV joints/stub axle's whereas 1974-5's are a straight swap. As mentioned you will need to replace your hubs too.

Obviously new bushes and shocks are a good idea!

If you need any help on the install let me know as I've just done it myself

Oh and be warned you may have to drop the gearbox to get the existing arm off whihc can be a PITA!!
Porscheless but still aircooled
Post Reply