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IS F (2008-2014) Discussion topics related to the IS F model

Front Subframe Alignment

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Old Aug 19, 2025 | 07:34 AM
  #31  
CCColtsicehockey's Avatar
CCColtsicehockey
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Originally Posted by lobuxracer
See this post: https://www.clublexus.com/forums/is-...l#post11944200

There's a clear diagram of the measuring points. If you wanted to put a dowel in the subframe for a measuring point, make sure it is centered on the hole for the LCA.
Thank you. The hole I was referring to was the small hole in both the frame and the subframe near the front bolt that you put a nut on for the subframe. I didn't know if you had the right size dowel in both of those if it would help align things good enough. That diagram is a great visual, though, so that I can take the measurements. Hopefully, it will help fix my caster cause if not I am going to assume something is bent.
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Old Aug 19, 2025 | 01:36 PM
  #32  
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Originally Posted by CCColtsicehockey
My cambers up front is within .1 of each other but my caster is now off by 1.4 across the front my most recent alignment like 12 months ago. Hoping to get that much closer to the same as the car pulls to the right.
Something is bent 1.4° caster split is huge. Of the 30+ F cars I've had on the alignment rack, cross caster is always 0.1 - 0.2°
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Old Aug 21, 2025 | 04:59 AM
  #33  
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Originally Posted by viprez586
Something is bent 1.4° caster split is huge. Of the 30+ F cars I've had on the alignment rack, cross caster is always 0.1 - 0.2°
The car was in an accident on that side. The shop stated they replaced the subframe and the control arm back then. That unfortunately, would mean the frame is bent but everything bolts back together still. I regret passing on a local deal from a guy selling a subframe with control arms a year ago just to rule that out if they hadn't actually replaced what they billed insurance for.
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