U.S RubberShox Automotive Coil Spring Block Boosters Series Pack, Performance Enhancement for Car Coil Spring Shock Absorption and Protection of Auto Suspension System (1.25" x 1" x 1")

They created the perfect ride height for my car without sacrificing the ride quality.

Easy to install but not very strong. When i lowerd the jack it split in half.

I installed on a 2wd dodge with a mushy front end coil spring. Installed and zip tied in. Notice a big difference immediately in just stiffness. Is the rubber worth the price? If not, the ride improvement sure as heck is. Great product.

Great fit and function. Work as advertised and are still going strong (3 months) in my Chevy Silverado.

I got a pair of this to install in my 2013 kia soul,so I can carry 4 bikes on a hitch rack,they worked great until they fell off, contacted the company and they sent me a replacement right away and gave me new instructions so never lost it again,it was easy if I would it know, (Drill a hole on a corner and use a zip tie in case it falls don't get lost.Rick E. From rubbershox took care of me ,can't beat great costumer service !!Thank you great company!!

Install was easy. Wrap a zip tie around the block and the spring so it doesnt come off.

These are a good idea in theory however they don't work in real life. They do not stay in place. It is a total waste of $16. There is no way to secure them in place and they are not grippy. Try a different product, perhaps the "helper coils" that fit tightly in your shock coils and then are cable tied in. I couldn't even get my money back because they only give you 30 days. That's a pretty short return policy. I didn't have time to try them for 2 months and then I saw that I couldn't return them. Defective product. Do not buy.

I gave this product a five star rating because at the present, being on the car only two days and test driving it a couple of times, they seem to be working well. time will tell. Hard to really rate a product like this when it is this new.