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Message: <blockquote data-quote="PuristOfRacing" data-source="post: 891508" data-attributes="member: 15617">The Mark 2 Toyota Supra (from now on, the Supra) uses a suspension system designed in the early 80's by a company called Lotus. At that time, Toyota had a controlling interest in Lotus and had them design the suspension for the Supra, as well as several other cars, including the AE-86 Corolla. Up front it uses a Macpherson strut suspension with a single lower control arm and strut rod. The camber, caster and toe are all adjustable but not easily. The factory size antiroll bar is 1" diameter. The rotor is sandwiched between the hub and spindle which means that you must disassemble the wheel assembly to change the rotor. The hub rides on an inner and outer bearing with spindle assembly - the wheel bearings on the Supra are known to last for many hundreds of thousands of miles, provided they are kept clean and greased, but you may want to replace the inner oil seal if it looks worn, and use a new cotter pin on the spindle nut. The steering is a variable power assist rack and pinion design. While the front suspension shares its lineage with the RA series Celica, it has slight differences in shocks, springs and kingpin angles so it is not readily interchangeable. The steering system is also not interchangeable between the Supra and RA series Celica.The rear suspension is a fully independent semi-trailing arm design and has one major downfall - the camber change under bump and droop is extreme, and there is no way to adjust the rear camber on a stock suspension, so lowering the car can produce undesirable rear camber characteristics. In the forum there is a thread detailing modifications to the rear crossmember to allow for adjustable rear camber. The small amount of extra negative rear camber provided by a small drop (under 1.5") may benefit the handling for motorsports applications, but can be bad for traction in a straight line and tire wear. The stock rear antiroll bar is 5/8". The rear hubs are assembled with a staked nut on one end and a thru bolt with splines to transfer the torque. It is extremely rare for these to fail or otherwise require service unless they get help from accidents or rust, so my advice is to leave them alone unless they are already making bad noises. This suspension is identical to the rear suspension in the RA series Celica GTS, except for the rear crossmembers, so it is for the most part interchangeable.</blockquote>

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