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When the springs are set on top of the axle instead of under the axle the torque on the driveline will allow the pinion to rotate down in the front axle and up in the rear axle. In my case I have a front locker and plenty of torque from the 350 strocker motor to make the front pinion rotate down enough that the drive shaft hits the drive flange and breaks the pinion. The traction bar will not allow the axle to rotate very much so I don't break anymore pinions (one was enough).
The rear springs have a stiff add-a-leaf that prevents the springs from flexing to allow the pinion to rotate up so that has not been a problem so far.
This design allows the arm to rotate up and down as needed and in and out to make adjustments as needed.
I think I will try to adjust the arm shorter to make the angle of the traction bar shackle match the angle of the spring shackles as Isotel suggested.
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85 FJ60 - Powered, lifted, locked, geared bumped and bruised.
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