[Spanky]

Yes I've searched the forum. adjustable QT links, bending beams, bad struts, bad wheel bearings, "shimming" our un-shimmable rear beam. Im not done looking through threads but I feel like I'm going in circles.

Left rear is out of wack and I am at a loss as to how or why. No accidents, koni struts are 20K into their life but they are paired with sportline springs with 150K. The rear end has the full suite of super pro bushings, in fact the whole car is rocking super pro bushings if it makes a difference. Rear wheel bearings have a cool 306K on them, vintage stuff at this point, but they've made no noise or caused vibrations from what I can tell. Rear wheel bearings are on hand but Im hesitant to throw them into a beam that might need to be scrapped

Left Rear
Camber: -1.5
Toe :-0.27 (limit is -0.12 to 0.21)

Right Rear
Camber : -1.1
Toe : 0.09

Tech at the alignment shop says this will cause the car to pull right and sure enough the car has been pulling right. Not a serious pull but you gotta maintain a hand on the wheel to keep her straight.

So what do you guys think? Is there a diagnostic tip or trick to determine whats going on here or am I in a fuck around and find out situation with the wheel bearings? Or...scrap the whole damn beam and pull one from a yard...

 

[Spanky]

Might as well let you guys see the whole picture.

 

[CrickiKaze]

Can't remember the actual name of it but the front bushing of the rear axle deserves a check and it's mount to the body. Wonder if the trailing arm on that side is bent, but I can't see that ...

Speculation but a blown shock could be a cause, something up front could be causing issues in the rear, as you said it could be a bearing problem, possibly hit something that was noticeable but didn't draw concern, tire/rim or the mounting of it.... but all speculation.

Hard to say, either a worm component on the trailing arm or full on damage.

 

[Spanky]

Ill be checking the trailing arm, bushing and mount then. Gotta replace axle seals this weekend so Ill inspect front struts for leaking/damage then.

Just had the wheels balanced a couple hours before my post so I can pretty confidently rule out wheels, tires could be suspect but the techs didnt bring anything to my attention so we'll call them good for now.

On the subject of hitting stuff...I havent hit anything like debris in the road but highway construction in my area has introduced diverted lanes with some seriously sub par road surfaces. The metal plates bridging gaps sunk, hitting those dips is ROUGH. Like "fuck my ass in half" rough. I can see my wheel bearing being more and more of an issue having to endure that kind of punishment on a daily basis.

 

[darkstarxi]

All B15 Models - Scott-Russell Bushings Discussion

"The Nissan rear suspension is very cool, for a wheelbarrow. To keep the rear suspension from flexing sideways under load, Nissan uses a device called a Scott-Russell linkage. However Scott and Russell must not have been very good suspension engineers. The linkage does reduce flex but is...

www.b15u.com

 

[Spanky]

@darkstarxi thank you for pointing me back at this thread. Reading through this for insight now.

Really want a panhard rod now.