Originally Posted by fenderub

yyup the top subframe spacer needs to be modified to fit over the key/sleeve properly.
bottom subframe spacers should not have an issue. jza80's dont have this issue though. just our sc's

lower your car with like planks or stands under the wheels, or something so you can still be under the car to tighten the subframe bolts.

then lower the car like an inch after it hits the planks. this way you have weight pushing your sub frame against the chassis, and then you can properly torque down the subframe bolts.

Originally Posted by fenderub

that was so you can torque the subframe properly.

if you wanna use the top mount spacer of the subframe, you have to modify them, period.

Originally Posted by Dan at MAX USA

There is a difference on the USA and Japan Jzz30 vs Jzz31.
these parts are sold in Japan for the Toyota Soarer, not the Lexus SC400

The Japanese car does not have the notch on the subframe post the USA version car has, so this JDM part needs the inner diameter cut out (only on 2 of the eight pieces, the upper subframe ones).

Here is a post from member biggu on club lexus that he (partially) modded his in the following photo:
https://www.clublexus.com/forums/sus...entioning.html

top spacer that goes over front subframe needs the inner ring removed

the picture shows the inner ring partially removed but to clarify, it needs to be completely removed so that the inner diameter is larger, moved out to delete the inner ring entirely. so where you see the raw aluminum in the pic, that needs to be all ground out. if you know someone with a lathe its like 5 minutes, if not its more like 30 minutes to an hour with grinders out of the local hardware store.

Alternatively, the ID is being cleared out for a square hump that sticks out of 25% of the diameter of the subframe post, so you could theoretically cut out only a portion of the inner ring but the fact is if there is a lathe its easier to take the whole inner ring out.