Rear Strut Install With Whiteline Springs On 32 Gtr

[NSNPWR]

Hoping someone can shed some light on how the rears of these go together...

Ive got 2 full sets of circlip height adjustable shocks, Koni Yellows and a set of Agreves....

The fronts no issue...the rears im confused about how they go together...

The Konis came with 2 flat nuts for securing the top hat...I didnt click to start with as to why they came with 2 nuts and originally used 1 nylon nut, mounted the strut up in the caronly to realise that the shock was not working and the car was just bouncing around on the spring....pulled them apart and after some thought, I put one flat nut under the top hat and another nut on top, locking it in place...job done...seemed to work fine beside bottoming out due to it being too low on the lowest circlip setting...

My question is, why do these aftermarket shocks require a nut either side of the factory top hat? I just cannot figure it out, ive used these same springs with factory strut/shocks and not had a problem...

Hoping someone can shed some light on this!!!

[blind_elk]

The 2 nuts are for a "locknut" system. Secure the strut with the first (larger / thicker) nut, then screw the other nut down and lock the 2 together.

[NSNPWR]

Cheers, but what I dont get is why these shocks require this arrangement (both aftermarket sets I have) and the factory rears with the same springs dont?

[NSNPWR]

Anyone got any ideas, ive spoken to my mechanic and even he cant explain it...just doesnt make sense...they are, in theory, a direct replacement using the factory top hats so im lost as to what could be causing this to happen...

I tried the Agreves in there yesterday and it did the same thing...assembled the spring/shock, all seemed fine, spring was held in place nicely, fitted the spring/shock assembly up to the car, lowered it down and bounced it around...you can see the shaft of the shock moving up through the top hat? Why? The factory setup only has one nut on top!

[djr81]

You need to secure the shaft of the shock absorber to the mount. To do so you can either bolt it top & bottom or use a collar underneath & a nut on top.

As to why - the shock will have gas pressure in it which extends the shaft. So when you push down on the car without the shaft being secured the spring compresses & the shaft doesn't. Hence the shock doesnt function.

Edited March 10, 2011 by djr81

[NSNPWR]

Cheers mate, so the factory assemblies have a collar? From inspection, they dont?

As I posted up top, we used the 2 nut method on the Konis and they work fine, as or the other set, well, theres not enough threaded section to use a nut either side of the top hat as well as the rubber bush and washer required on the top side...where would the collar secure to?

[djr81]

From memory it is hidden in the bump stop.

It sits on the end of the shaft at the bottom of the threaded section.

That is how Bilstein do it anyway.

[NSNPWR]

Cheers mate, will have a bit more of a look!