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Steering Ratio


Hybrid Rex
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Has anybody ever successfully managed to change the steering ratio on SC430?

Compared to most modern cars quite an amount of steering wheel angle is required in corners so if there are other components in the range that would swap over and "speed up" the steering a bit it would be good to know.

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Quaife and DMRR recently developed a Steering Column Gear Box (SCGB) that quickens steering. It has a 1.25:1 ratio. I am told by DMRR that the SCGB has so far been fitted by a customer to a Porsche Boxter. If someone manages to fit it to a Lexus SC430, preferably without cutting the steering column, I would appreciate if you write me. DMRR can be contacted via www.dmrr.net. Attached are photos of the SCGB and uni-joint knuckles for the SCGB.

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Thank you John. I have spoken with Lexus/Toyota and many steering specialists. The answer has been no other steering rack fits, whether it be from a different model Lexus or a Toyota. Des from DMRR reckons the steering column gear box (SCGB) might be installed without cutting the steering column, but until someone has done that, I can't take the punt.

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