Common questions

How do you measure leaf spring shackle?

How do you measure leaf spring shackle?

On leaf springs with an eye at one end and a slipper at the other, the way to gain an accurate measurement of the overall length is much the same as with an eye-to-eye top spring. Start at the center bolt, extend the tape measure along the surface of the spring to the center of the eye, then take that measurement.

How often should you change your leaf springs?

On average a set of leaf springs for a standard pickup truck or van will have a lifespan of about 200,000 miles. This number is not written in stone, and some vehicles will break their springs with far less than 200,000 miles on them while others will go well beyond the 200,000 mile mark before they break.

How do you change rear leaf spring shackle?

Place a floor jack under the rear differential of your vehicle and raise it off the ground. Lower the jack and allow the suspension to droop, taking the weight of the vehicle off the shackle. Remove the lower mounting bolt from the shackle and spring using a socket and ratchet.

What kind of bolts are in leaf spring shackles?

If you do purchase a leaf spring shackle kit, make sure it comes with new Grade 10 (minimum) bolts. If not, I recommend you purchase them. Some leaf spring bushing replacement kits either don’t come with new nuts and bolts or the bolts they do come with are at best Grade 8.

What kind of bushing to replace leaf shackles?

Polyurethane (poly) bushings are a little more expensive but will last longer than OEM rubber bushings. If the shackles are in good shape, just the bushings need to be replaced, and there are several ways to do this.

What happens if you hit the spring shackle?

As we discussed earlier, this is when the shackle is in line with the arch of the main leaf of the spring pack. While at this point, if something hits the shackle while moving forward, its possible, and probable, that the shackle will fold backwards instead of returning to its normal position when weight is put back on the wheel.

How do leaf spring shackles work?

A spring shackle is a device found on leaf-spring equipped vehicles. It mounts to one end of the leaf spring and allows it to flex and move while keeping the tire on the road. Without a shackle, the spring would not be able to move and the tire would be pulled off of the road’s surface when a bump or obstacle was encountered.

What is spring hanger in leaf spring?

Leaf spring hangers provide frame connections for the leaf springs and leaf spring shackles on the suspension systems of Pickup trucks and Vans. Leaf spring hangers are made from stamped or cast steel and riveted to the frame during the vehicle assembly.

What is a leaf spring bracket?

The leaf spring bracket is where the leaf spring attaches to the vehicle’s frame. Typically, there are brackets for both the front and the rear end of each leaf spring. The front end of the spring connects directly to the bracket or “hanger.” In the rear, the leaf spring is usually attached to the bracket via a link called the leaf spring shackle.

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Ruth Doyle