U.S. RubberShox Series Front-Rear Car Coil Spring Buffer Cushion/Automotive Suspension Shock Absorber Retainer Performance Booster Kit Universal Type A-F Vehicle Auto Parts (CSB Plus, F)

I Installed perfect for my kia cerato 2014 and it was improved my steering and lift around half inch, riding smooth bumb even in humps and yellow lane. I highly recommend this product!

Very hard to put in place but it impressive on the road !

I came to the reviews for help so I'll return the favor! 2025 Toyota Sienna XLE Woodland Edition: size A- in the black durometer. Installed in rear only. Fit: Tight but not too tight. With ample WD-40 per the instructions, installation took about 5 minutes per side of working them over the coils and adjusting into place. Tip- run your finger along the inner edges to ensure the inner lip is fully seated over the coil. Compplete installation took a bit longer because I removed the rear wheels for easier access but it could be done without. I opted to not install the zipties because the fit was tight enough as-is. "That's not going anywhere" Ride: It felt like the rear was lifted more than measured and much more stiff than the sloppy ("comfy") factory rear suspension setup. I will report back after some highway and loaded drives. Not too firm for daily driving around town but noticeably less rear sway. Lift: Provided about 1/4" of lift in the rear measured after a test drive to settle them in. Overall I would recommend them if you dislike the saggy rear of factory Siennas with any added payload. At this price and ease of installation it's not terrible to try a couple densities to dial it in to your preference.

I haul my jet ski using a smaller car, also my car is lowered so when I put the trailer on the hitch the car would drop even lower. Installing them was ridiculously easy, my car is lowered so I thought it was going to be a nightmare. They slid right in with a bit of force, i didn’t have to cut them or nothing. Their printable ruler and table made it easy to measure the spring gap and choose the right size and hardness. So far so good, I haven’t ridden the car with the trailer on but the rear height has increased and the stiffness has increased so I have high hopes it will actually work. I will update this review once I haul my ski again. I know I have to cut the zips.

Fitted these to the front of our '09 Smart 451 (size 'D' Red in the middle of the springs) as heard that these would help with our terrible UK roads. It has removed the harsh crashing sensation over potholes and makes driving far more comfortable. I would recommend anyone struggling with a harsh ride on their Smart 451 to try these.

Our 2002 Acura MDX front struts were replaced at 116K with decent Monroe aftermarket parts. The OEM springs were reused. Around 135K, the struts started to feel softer with more lean in turns and excessive diving during braking. It was easy to bottom out the front end over easy bumps. The strut gas shocks are still fine it's just that the springs have aged so there's a lot more front end motion that doesn't inspire confidence in normal handling. At 153K, I replaced the rear shocks since they were original but this did not make a major improvement in overall handling. I considered replacing the front struts and springs with new parts but there's no guarantee that the new springs would provide a stiffer ride. I'm not excited about spending $600 or more to replace struts only to get minor improvement. After a bit of research, I discovered that RubberShox appeared to be a simple solution worth trying to restore a higher spring rate. The MDX coil gap (vehicle lifted) measures 1.90-2.00 inches so I chose the DuraTPE-A size that has an H2 of 1.85. According to RubberShox and other reviews, H2 should match your coil spacing for optimum performance but the spacers can be very difficult to install when these dimensions are close to each other (do NOT choose H2 greater than your coil spacing since it will be virtually impossible to install). As it turns out, I had no trouble installing the A-size and they were a perfect fit. Yes, it took some effort and WD-40 but if you follow the instructions and work by slowly feeding the spacer into the coil, keeping the upper groove fully engaged and leaving the lower groove to be slowly "popped" over the coil as you go, then it works great. I did not trim the spacer in any way but I did use a wooden handle to provide additional leverage to get the lower spacer groove to "pop" over the coil at various points. Once done, this RubberShox spacer is perfect fit as you can see in the photos. I slowly worked the spacers up towards the top of the strut so that they would be somewhat hidden in the strut tower cavity. The overall lift in the front end is about half an inch and looks like the original OEM height now. The improvement in ride and handling is like having a whole new vehicle! You would think that the ride would be stiff but it's not --bumps are smoother and the chassis feels controlled once again. No more excessive leaning in corners and nose dive during braking is minimal. I would say the car handles as good as or better than when new. Such a simple and economical fix! Try this solution if your springs feel soft or worn out, it's a great product.