I have a 1999 q45t infinti with a 240sx s13/s14 coilovers conversion sometime when comin to a stop I get death woke real bad then other times it dont but when it dose it feels like it's gunna rip my front end apart any ideas on what it could be alignment is good and tires should be good I think it's in the suspension but I just can't figure it out thanks

And another thing about every 6 to 7 months the driver front left side snaps at the top hat the strut and I'm not understanding why it's only that one I can do donuts and take it mudding and be extremely rough and it won't break but I can be driving and hit alittle bump or pot hole and it'll snap but only every 6 to 7 months I know it could be that this suspension is not made for this type of weight but it weird that only that one side dose it

whats the condition of the caster arms? I'm willing to bet they are beyond toast

What are caster arms? The alignment arm?

https://www.streetrays.com/spc-front-ca ... 67720.html

They connect the lower control arms to the subframe for stability. I drove one years ago where they were shot and its had the death wobble. I'm guessing the rubber is shot and this could be your issue

Alright I figured it is the alignment arms and they are toast I havnt ever thought of that being the problem I will replace them eventually to see if it resolves the problem is there anything else that coukd cause it or it's 100 percent that that's the problem cause there bad thank you for the input

Jack up the car and shake the front wheels around. Look for cracked rubber bushings. Idk about the 240sx but you can get the bushings for the Q45 tension arms on rockauto.

I feel like trying to get the bushings out will be a pain so imma buy adjustable ones cause when I did the 240 conversion for coilovers I had to drill holes in my lower control arms for that alignment rod to bolt to so I'd like to be able to adjust it and out it back in the correct spot the bushings are all cracked up and swollen and have been since I bought the car 3 years ago and any idea on why the suspension breaks on the driver front

Huffavery89 wrote: ↑

Sat Jun 03, 2023 7:47 pm

I feel like trying to get the bushings out will be a pain so imma buy adjustable ones cause when I did the 240 conversion for coilovers I had to drill holes in my lower control arms for that alignment rod to bolt to so I'd like to be able to adjust it and out it back in the correct spot the bushings are all cracked up and swollen and have been since I bought the car 3 years ago and any idea on why the suspension breaks on the driver front

You figured out the problem

Installing "new" or modified suspension without addressing old worn out stuff first? Come on man

I replaced the caster arms it came back. When it starts to shake if I pump the brakes over and over again like if I retry braking over and over again it stops till the next time. I also don't have a front lower sway bar due to the coilovers.