'70 T with Alloy Trailing arms--best shod/T Bar set-up

[Ridgebk995]

I've recently bought '70 T, RS Tribute with a '83 ROW 3.2 SS, and a 915.

We recently put on alloy trailing arms with 964 brakes all around and while the ride height looks great, there is little suspension travel F&R.

Wondering what the best shock, T-Bar set up might be. The car doesn't have rear adj spring plates, should I start there? Its got bilsteins in back and Koni's up front, from what year/model, I have no idea.

[Mr9146]

21mm front and 26mm rear bars for street driving
Bilstein HD all the way around
Some sort of aftermarket suspension bushing setup would be recommended, too.
Adjustable spring plates are a help, but not necessary.

Sounds like a cool car ... enjoy!

[37yrold911]

Or use 21mm front and 27mm rear bars for street driving
Bilsteins with digressive valving

Most like rubber front bushings, some like the polybronze from Elephant

[Ridgebk995]

Which bilsteins, from a later model year to account for the allow arms?

[91133]

I'll call +1 on the 21/26 combination (in hollow and plugged equivalence) but I'm also a fan of beefier sway bars. The choice will also depend on what profile tyres you're running and the sidewall compliance. As for travel, I assume your fronts have had the 19mm spindle drop?

Cheers,
Mark

[Flieger]

21/26 sounds too front stiff to me. I use 22/29 in my lightweight. I would say 21/27 would give a better ride than 21/26.

[RSTarga]

How did you put alloy trailing arms on a 1970? Don't your rear shocks rub? Or did you modify the arms?
I agree with Max. Use 19 front and stick with your 26 rear.
Are all your bushings in good shape?

[Ridgebk995]

No rubbing, maybe because it's a later trans?

[H-viken]

No rubbing, maybe because it's a later trans?

It shouldn't have anything to do with the gearbox (if that's what you mean by "trans").

Would you mind taking a few pictures of where your shocks go through the rear crossmember? The reason I'm curious is that I'm about to do the same installation myself on my 911T from -70 and was under the clear impression that the trailing arms need machining.

/Johan

[37yrold911]

Differential stiffness of F/R torsion bars will affect oversteer/understeer. That is the main thing to think about.