updates | March 05, 2026

How do I know if I need ACNL springs?

Look out for these tell tale signs that you need to replace your leaf springs:

  1. Squeaky sounds while your truck is in motion.
  2. Slouching on one side.
  3. Sagging in the back.
  4. Diminished handling.
  5. Trouble hauling and towing loads.
  6. Suspension bottoming out.
  7. Cracks on leaves.

How do you upgrade leaf spring suspension?

For leaf springs (a common rear suspension for trucks) you could simply add another leaf, or use ‘spring helpers’ that bolt on to your existing springs to add tension and strength. Coil springs are more common on the front end and can be reinforced by fairly inexpensive, easily-applied supports.

What is a tapered lift block?

Blocks are TAPERED to correct for the pinion angle change seen when lifting the rear of your vehicle. Blocks will fit on many different applications.

What shocks give the smoothest ride?

The smoothest riding shocks you can get would be ones identical or nearly identical to factory tuning, typically something like the Bilstein B4 series, KYB Excel-G Series, or Monroe OE Spectrum. All of these have the most forgiving valving for road handling and comfort.

Can I upgrade my suspension?

While the upgrades to your springs and shocks can do plenty to improve the overall performance of your suspension system, you can gain additional benefits by using bigger wheels. In fact, the upgrades can give your truck the needed clearance for a larger size of wheels.

Do lift blocks need to be tapered?

With a 4″ block, you will want it tapered. Yes, it does help correct your pinion angle, the taper keeps the pinion and driveline in as a straight a line as possible.

Which way do you install tapered lift blocks?

the thick part of the block is to the rear , the thin side of the block towards the front . The taper/wedge slope goes towards the front , so the pinion , and driveshaft goes up.

How do I know if my leaf springs are overloaded?

If a truck gets overloaded beyond its capacity, the leaf spring will flatten out, reducing the height of the truck….Other tell-tale signs of worn-out leaf springs include:

  1. Uneven tire wear.
  2. Frequent bottoming out.
  3. A bumpier, less comfortable ride.
  4. Leaning to one side.

What does leaf spring capacity mean?

The spring capacity and the axle capacity. For the 4-Leaf Double-Eye Spring # SP-212275 that you referenced it has a spring capacity of 1,750 lbs meaning that the individual spring can handle 1,750 lbs. The axle capacity is 3,500 lbs meaning that when you use two springs the combined capacity is 3,500 lbs.

Will new shocks make ride smoother?

Shocks and struts help keep the vehicle stable during acceleration and braking. The customer may think that new shocks and struts will simply make their ride smoother, but the truth is that new shocks and struts can do a whole lot more. New shocks and struts can make a vehicle corner and brake like when it was new.

Is KYB better than Bilstein shocks?

➥➥ Bilstein shocks are overall more durable and better for off-road driving. ➥➥ KYB shocks are a bit better with cornering. Their corner strut assemblies are a bargain too. ➥➥ KYB are definitely stiffer – with Bilstein you will experiences a smoother, more comfortable ride overall.

How much does it cost to upgrade a suspension?

Typical costs: Replacing a suspension system can cost $1,000-$5,000 or more, depending on the type of system and the make, model and year of the vehicle (luxury vehicles typically cost more than standard automobiles).

How do I make my car ride like new?

How to Improve Ride Quality In Your Car

  1. Avoid bigger wheels if you want a smoother ride. As a general rule, bigger wheels result in a rougher ride.
  2. Choose the right tires. Not all tires are created equal.
  3. Change your suspension parts.
  4. Make sure your car is the right height.

Does adding a leaf spring increase ride height?

An Add-A-Leaf is an extra leaf added to a leaf spring pack. Added leaves are installed to increase vehicle carrying capacity or to reduce sway by creating a firmer ride. They can also be used to increase the ride height of your vehicle. Adding a leaf to your leaf spring is very similar to simply upgrading your springs.

Is it bad to leave a heavy load in your truck?

The correct answer will depend on the size of the truck. As long as you have not exceeded the load capacity of the chassis you should be fine. However the longer the springs are the compressed to their maximum deflection the less likely they are to return to their unloaded shape.

Does adding a leaf spring increase towing capacity?

If your truck works as hard as you do, every day, adding a leaf to your existing spring pack is a great way to increase your load and hauling capacity. Adding a leaf can give the average pickup an extra 700+ pounds in carrying capacity. Adding a leaf to your springs will raise your truck between .

How much weight can a leaf spring hold?

There is usually two capacities listed on a leaf spring. The spring capacity and the axle capacity. For the 4-Leaf Double-Eye Spring # SP-212275 that you referenced it has a spring capacity of 1,750 lbs meaning that the individual spring can handle 1,750 lbs.

Do better shocks make a difference?

New shocks tend to be a less expensive repair than replacing struts because they are less involved and do not impact the structural integrity of your vehicle. The shocks and struts improve the ride and reduce the bouncing caused by springs compressing and releasing so you don’t go boing-boing down the road.