Have one in our drift car. Works sweet. Needs a good tug to lock up in a straight line but once sideways they work sweet. That's with an in-line setup on a disc brake rear end.
Would definitely work better with it's own reservoir on a seperate caliper.
Old picture while we were building it, we ended up using a bright red handle bar grip on it so it's easy to see in your peripheral vision and a good grip.
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910 S3 Bluebird - FJ20ET, E85, IRS, 5 Speed, 4.4 LSD
910 S3 TRX - RB25DET, Coilovers, S13 Front end, Power Steering
RA23 Celica - 18RG, Twin 40mm Webers, Coilovers, rolling on SSR mesh 15x7 0s.
1600s arent the only datsun