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Old 12-19-2008, 06:43 PM
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Shock Mounting

I have a 37 Ford with a straight axle front end. I would like to know which is the best way to mount the front shocks. I can mount them straight up & down (vertical) to the spring shackle, or on an angle to the axle perch. Which would give the best ride.

Thanks

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Old 12-19-2008, 09:02 PM
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Last time I heard it was a 10-15% angle, vertical doesn't give much shock value.
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Old 12-20-2008, 10:53 PM
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I typically mount the shocks at roughly the same angle to match the arc the suspension moves in. Visualize a one wheel bump on your front suspension, you will notice generally the suspension rotates on a pivot from the tire contact patch on the opposite side of the car. That is the angle I like to mount the shocks. The same goes for the rear on a live axle rear end car.

The more of an angle the shock is mounted away from the arc of the suspension, the less effective the shock will become. For example, a stiff shock will be less so when mounted at an extreme angle (picture the front end of a chopper motorcycle, the shocks do next to nothing compared to fork flex).

Hope this helps,
Andy
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Old 12-21-2008, 06:35 PM
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Andy, thanks for your come back. Correct me if I am wrong, but your reference to the angle sounds like you are referring to the inside to the outside angle.
My question was it better to have the shock mounted from the frame back to the axle at about a 35 degree angle, or mount it straight up & down (vertical).

Again thanks for your feed back. I hope you comeback again with your thoughts.

Teds37
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Old 12-21-2008, 08:33 PM
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In reference to the angle on side view, the same general rules apply. Having the shocks travel in the same path the suspension moves, the more effective the shock can be. If you mount it at the 35 degree angle you describe, you will get what is know as a falling rate setup. The more the shock travels, the more the angle increases and the less effective the shock becomes (remember that chopper front end). Mount the shock so it follows the same arc as the axle travels the best that you can.

This rule of thumb also applies to coil-over mounting. In the case of the coil-overs, not only does the shock become less effective when mounted at large angles, but so does the spring as the suspension compresses.

I hope this info is usefull,
Andy
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