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

I think it does not fit for rear spring for dodge challenger sxt 2017 the front spring did go good.

Orders the blue version for our old 2007 Malibu. The rear springs sag with the kids in the back, and these lifted the rear about 1 1/2. I had to trim the lip of the top side to install them. Requires some serious effort, but not horrible. Stiffer ride but time will tell how they hold up

These were the second pair I purchased here for my Volvo 240. The blue ones went on the front, these for the rear. In both instances, installation was a huge struggle. Not as easy as it shows in the video. I followed the instructions to the letter, hours spent on the first one. I discovered it was imperative ( at least with my car ) to trim off about 3/8 in. from the the inner flange. The 1/4 in first cut was not enough. I also beveled the leading edge of the cut to get that all-important first part on along with first getting the lower track on it's spring first, then using all the strength I could muster , work the upper track onto its part of the coil. I drilled a pair of holes in these, as unlike the blue ones, they did not come pre-drilled for the zip tie securement system. On the fronts, I was able to use an altered pair of McPherson strut compressors to actually spread the coils just a bit more- that made a huge difference , and they slid right on just like in the video. This system was not able to be used for the rears, at least on my car.

This is a great product. I used the black version on my 2016 Prius C at the rear coils. I did remove the coils from the car to measure the gap, then ordered. When item arrived I again removed the rear coils and installed...then re-installed coil to my car.I have experimented with softer RubberShox and blocks but this combo is the best and cleanest. The ride is perfect and prevents sagging when loaded with passengers. I was having clearance issues (oversize tires hitting the plastic inner fender) when bottoming out...this cleared the issue all up.I have the orange versions on front coils. I did not remove the coil, only jacketed car to unload springs to install.The combination of all four corners with RubberShox makes my car much better handling in corners.Note: I have a 1.5" lift kit by PriusOffroad.

Although there is nothing wrong with them and they are exactly as described IF you have shocks that the coils are thick you would be much better off using something else

Coil spring boosters are not new. Superior Automotive has sold them for years through OReilly Auto and other auto stores, Speedwaymotors which caters to circle track racing has also sold them.However, these RubberShox have the variety of sizes to actually most likely fit your car, unlike the limited previously mentioned offerings.Some advice regarding fit:- The diameter of the booster is not as important as the spacing between the coils (corresponds to the H2 on the booster) and the actual coil rod diameter (G2 on the booster).- You MUST pick a booster that has a smaller H2 dimension than the spacing between your extended coil spring. It CANNOT be close or bigger. I originally got the A size for my car thinking that even though the H2 at 1.85" was close to my spring spacing of 1.75" I could force it. Wrong. Brutally wrong. There must be free space to feed the booster onto the coil. Even with the B size I got, which has an H2 of 1.22" getting the booster on still took some serious pushing and finger strength.- Most springs have smaller spacing between the coils towards their ends. Hence, I installed these boosters near the middle of my springs and then rotated them towards the end of the springs. This wedged them into place. Even though zipties were included with my boosters there were no holes in my boosters for them, and I wouldn't nor saw any need to drill holes in my boosters to use the zipties.- Rubbershox says you can use WD40 to mount these. That's controversial as people have said WD40 deteriorates rubber, I used soapy water.The results are fantastic. Concerning raising the rear ride height, that is negligible. Immediately after install there was an increase of 1/2", but it didn't take long for that to settle out right back to the original height. But under dynamic load and motion it is obvious that the rate of my rear springs has noticeably increased. Cornering is spectacularly better. Even at low speeds in parking lots the steering is noticeably tighter. At higher speeds there simply is less body roll, and hence less steering input is needed.I'm content enough that I don't feel the need to get boosters for the front. I have the Pro for the rear (black) and was going to get the standard (red) for the front, but I'm fine with how the thing handles for now. I do recommend for most vehicles that the rear be stiffened before the front. Stiffening only the front will promote understeer. Especially on longer vehicles such as vans and minivans stiffening the rear in comparison to the front will aim towards oversteer and sharpen steering input. There is a lot of torsional twist that occurs in longer bodies and stiffening the rear helps counter that. This is definitely a best bang for buck mod for a car like my van.There is no detrimental harshness. Going over speedbumps is clunkier and louder, but it's a compromise I'm perfectly happy with. My only concern at this point is durability, which remains to be seen.

Easy to install, didn't provide any noticeable lift but the suspension doesn't bottom out as low when loaded.

Lo pedi con la caracteristica B (H2=1.22"), llego con logotipo de medida "B", pero la medida real que trae en H2 es de 1.10" (29mm), trae una tabla de medidas pero todas las medidas concuerdan con la medida "C" por lo cual antes de comprar ccertifiquen con vendedor las medidas, no me sirvio pero es mas complicado devolverlo asi que me quede con el, pero no comprare mas con proveedor por que ya no tengo confianza de sus ventas.

A part le fait que c’est un peu difficile de choisir la bonne grandeur, le produit fait ce qu’il a à faire en donnant une rigidité additionnelle à ma suspension arrière car aucun autre produit n’était compatible avec mon Santa Fe.