BilsteinShock B8 5100 Series, Monotube, Steel, Zinc Plated

I installed these on my wife's Yukon after I lowered it 4" in the back and added shock drop mounts. Rides good and I am always happy with Bilstein, as I have installed them on my truck as well.

Installed these on my 2003 Yukon XL with 160k miles. The factory shocks were tired and saggy. I pull a 30’ camp trailer a few times a year and it was noticeable difference after installing these. They are a great “truck” shock and make my rig feel very stable without riding rough. Definitely worth the money.

I gave this product 5 stars, but I was a bit unhappy when I found out months later that you need to change the springs as well. I believe this applies in some or most cases. If your vehicle has the ZW7 (Nivomat) suspension, these shocks will work, but you need to replace the springs also! The original Sachs shocks are higher pressure and designed to work with the stock springs, supporting some of the vehicle weight. The Bilstein shocks do not support the vehicle. I noticed no difference with an empty vehicle, but loaded or hauling a trailer could be a problem if you do not replace the springs. You need to replace the stock springs with the Bilstein springs, 199020 for my vehicle. Nice ride, but added work and another $120 or so.

Getting better performance and handling.

2005 Suburban 1500 4x4, all stock. Replaced original shocks with a set of these 5100s.First comments are based on test ride with new fronts only.The truck still rolls into corners but a little less so. It is definitely less bouncy and feels a little more solid.Definitely replace all 4 shocks. I had some question as to how to layer the top mount bushings (2, over and under) and the concave washers (2, over and under).I found the hieroglyphics instructions useless (I'm at least a little educated, I can assemble ikea furniture perfectly). I had to Google to find out how they go (the washers make () around the bushings; the bushings' rubber lip mash into the trucks shock mount).My test drive with just the front two shocks was underwhelming overall. I'll update when I test drive with all 4 shocks.You don't need to jack up the truck but it makes it easier. The bolts (rear upper and lower) are 13/16ths on my truck but I used a 22mm and a 21mm just fine. Top mounting bolt for the fronts were different between stock and Bilstein were different(15mm and 17mm). Use a ratcheting box end wrench, it's the perfect thing. Use big vise grips to keep the post from spinning.I torqued the top mounting bolt after setting the truck on the ground... just enough to bulge out the rubber bushing a little.

Fit my 05 GMC Yukon. I had to install a bypass on the electrical system since these are NOT autoride shocks but my truck had autoride. The rear shocks were a bit longer than the OEM ones that I had on, but with a little compression, they fit right in.I will also note Amazon's superior customer service. My first order of rear shocks came in and the box was beat up and the shocks looked slightly used (even though I purchased new). They switched me out with a new order without question and shipped the new order quickly as always.

Suv rides smooth now no bouncy no more.

These replaced the stock shocks on my 2004 Suburban, and what else to say except they are Bilsteins - and they work well. I am a believer in the hype, the 5100's are a nice upgrade for mixed use of both street and off road.I don't do any serious off roading, but do like to drive on Forest roads to get to some remote camping destinations, and these fit the bill well for that.Recommended as an upgrade if it is time to replace your stock shocks. The stock shocks on the 2004 Suburban are not overly bad and I was able to get 50K before they needed replacement, but naturally, your mileage may vary (literally). Some replace their stock shocks immediately, which I can understand, many times the stock shocks are garbage....NOTE::: Suburbans from this time period can be tricky on the rear shocks, and even the front shocks, so do your homework for your particular vehicle. Some Suburbans have the Nivomat shocks on the rear (expensive, harder to find and replace), and some have automatic air shocks all the way around - and in both cases standard aftermarket shocks will not work. My Suburban had the "Premium Smooth Ride" package, with standard Delco Monotubes all the way around, so these standard type BIlsteins worked....Thanks for reading.