Universal Traction Bars install on a Duster....

dirty white boy said

when you launch a car off starting line, the force of pinion climbing the ring gear lifts the RR and plants the LR and a centered pinion snubber does nothing to stop this! traction bars do, they equal out this effect and if set up right plant both tires more equally!

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You found this out too, huh?? LOL. I will tell you, traction bars set properly will make an open rear end act like a sure grip on a flat road. My Duster always spins two tires on a flat road. A pinion snubber has never given that effect, because of what you accurately described in your post.