What should pinion angle be on a 4 link suspension?

According to Bickel, a ladder-bar suspension normally requires degree of pinion angle, a four-link requires 1-2 degrees, and a leaf-spring suspension requires up to 6 to 7 degrees.

Can wrong pinion angle cause vibration?

Pinion angle is one of the most important considerations on a lifted vehicle, but sadly it is often overlooked. The wrong angles can lead to horrible drive line vibrations, as well as premature failure of U-joints, driveshafts, pinion bearings and even transfer case output bearings.

What does pinion angle do to the suspension?

Pinion angle is important due to the forces at work in the rearend and rear suspension of a rearwheel drive vehicle. As power is applied to the rearend via the driveshaft, the pinion gear tries to climb the ring gear. This causes the rearend housing (along with the pinion gear) to rotate about the axles’ centerline.

What happens if you have too much pinion angle?

So, with too little of an angle you’ll wear out your u-joints, but too much of an angle you’ll wear out your u-joints and end up with some nasty vibrations.

How does 4 link suspension work?

A four-link suspension uses links to locate the axle from moving side to side and front to back, while allowing it to travel up and down and articulate.

How much driveline angle is too much?

Ideally, both driveshaft-operating angles will be 1 to 3 degrees. Anything over 3 degrees at the rear axle will shorten your universal joint’s life and could create vibration. If your angle is larger than 3 degrees, you must make sure not to exceed max driveshaft RPM as shown on this Spicer table.

Do 4 link bars have to be parallel?

A parallel 4 link fits most trucks better because the fuel tank is usually right in front of the axle, inboard of the frame. A parallel is sometimes easier to install because the link bar frame mount is one piece instead of two… less time in placing and welding the upper bar mounts.