Evolution of Speed A90 MKV GR Supra Differential Brace - Now Available

Mason

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At what power level is this needed?

Edit: what exactly does it do?
 

razorlab

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Those bolts going into the diff cover bottom holes make me cringe a little. That area of the diff isn't exactly designed for load. Sure, it's an iron case, but it's pretty thin there.

Screenshot 2023-06-01 at 12.25.15 PM.png
 
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zrk

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Those bolts going into the diff cover bottom holes make me cringe a little. That area of the diff isn't exactly designed for load. Sure, it's an iron case, but it's pretty thin there.

Screenshot 2023-06-01 at 12.25.15 PM.png
The brace has been tested on several high-power cars over significant of passes with no issues to the diff. The other three mounting points of the diff remain unchanged, but it is recommended you replace the front bushings with solid bushings as well.

The bolts do reuse the factory bolt holes from the diff cover, yes.

The diff case itself is definitely not why we keep spare diffs in the trailer, though. The diff itself fails far more often then the case.
 

razorlab

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The brace has been tested on several high-power cars over significant of passes with no issues to the diff. The other three mounting points of the diff remain unchanged, but it is recommended you replace the front bushings with solid bushings as well.

The bolts do reuse the factory bolt holes from the diff cover, yes.

The diff case itself is definitely not why we keep spare diffs in the trailer, though. The diff itself fails far more often then the case.
Yea, fair. I probably wouldn't run it without upgrading the front bushings. I'd also be interested in what happens when a wheel lifts in the air and back down, which is common on a track where you turn the steering wheel and not just going straight.
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