Should I replace leaf springs with very high mileage?


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Old 10-10-22, 11:54 AM
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Should I replace leaf springs with very high mileage?

92' Ford Ranger XLT with 2.9 V6. I need to replace all the rear leaf spring bushings. It's down to metal-on-metal now. These are the original leaf springs at 502,000 miles. The leaf springs seem fine. I never tow or haul heavy loads. Should I replace the leaf springs with this high mileage? These are pretty expensive.

 
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Old 10-10-22, 12:53 PM
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Leaf springs momentarily flatten when the truck goes over a bump causing rotation at the bushings so wear is expected. Unless the springs were deformed by overload, C shape pointing down instead of up, I would not replace them.
 
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Old 10-10-22, 02:12 PM
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Those old leaf springs are fine. Just change the rubber grommets.

Really the only time to mess with spring replacement is if they break.
It's pretty hard to bend or deform them.
 
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Old 10-11-22, 09:24 AM
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When the truck is parked the leaf springs are arched slightly with the ends curled upward. In other words, rear leaf springs are slightly 'smiling.'

Is that a problem? Do you want me to post a pic after work tonight?

(Coil springs up front. Leaf springs in the rear)
 
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Old 10-11-22, 09:55 AM
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A "U" shape with the ends slightly upwards would be normal.
That means your springs still have a positive arc to them.
 
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Old 10-11-22, 09:58 AM
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I also agree that they're fine. Only time I've ever changed a leaf spring is when it was broken. They will almst certainly out last the vehicle.
 
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Old 10-11-22, 10:52 AM
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can likely measure ride height on each side and see if one may be weaker than the other but generally they do not go bad or get replaced.
 
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Old 10-11-22, 11:12 AM
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Cool. Thanks
 
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