[black86]

I did not follow the FSM precisely, but may have indirectly. I bolted the mounting cups and arms using an quick jig I made with 2x4s that would provide consistent measurements with both L and R arms. I took the original arm position and angle, and did some math that made sense at the time that would approximate a "neutral" position with the new brackets and the car lowered ~20-25mm.

edit- OK now I see what you mean. The measurement A is from the same flat mounting surface on both mounts, regardless of the arm's mounting point. In the '25 FSM they're telling you to mount the arm at an angle that puts the arm's upper bolt hole nearly 4 inches lower than it is on the '23 FSM. Something seems off.

i measured close to 6" for my L trailing arm A spacing. so i took a look at the FB post again and he sent a revised version.
this is the MY25 and the one labeled above as MY25 might be MY23-24

good luck everyone. looks like the whole procedure, even tho it states its for MY23 gr corolla might be for the regular non gr corolla.

so 30mm higher mounting point and arm sits only 25mm higher.

 

[black86]

okay i made a better jig and measured 141mm
so this whole procedure but not for GR measure A use for torque specs

this is MY23-24 length A

MY25 length A

 

[wheelhaus]

Nice detective work, that sounds far more reasonable. I know my installation was closer to this, around an inch or so of difference. I used visual markings for reference instead of these dimensions.

 

[johny_2000]

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