This kit was installed on my 2006 Fleetwood Gearbox 220FB. This is a toy hauler that has a GVWR of 11,000 lbs. The axles and components are Dexter. The OEM plastic bushings were starting to wear through on three of the leaf spring eyelets. The plastic bushing on the OEM Equalizer was completely gone on about 20% of the circumference. Since the OEM equalizer was thrown in the trash, it didn't cause any of the install challenges I had. Some of my install issues could be from the age of the leaf springs, but I’ve communicated with someone that installed the same kit and had similar problems. When he threw in the towel, he switched to the Morryde kit and didn’t have as much difficulty. As one other reviewer noted, the packaging is horrible. All the parts of the kit - even the instructions - had been tossed in one box with nothing to keep them from smashing into each other. One of the parts had fallen out of the Dexter box, but was – fortunately – still in the Amazon box. The first page of the instructions was so beat up that I had to get them online. The instructions are good. Be sure to follow them, especially the alignment of the wet bolt outlet hole. This instruction is very important as it should keep you from aligning the grease outlet hole towards the top of the bushing where the weight of the trailer is pressing down. Read the entire set of instructions before you start. There are some supplies you'll need that will make the install go smoother. Specifically, the 9/16” bolt makes driving the new bushings in easier. A pipe that fits on the wet bolt head and around the zerk fitting makes driving the wet bolt into the bushing easier. I used the handle of my bottle jack. This worked very well, but the jack handle is now deformed. The new shackles are beefier than the OEM shackles. The chance of the shackles breaking is so low that I won't worry about it one bit. The wet bolts should help keep the suspension from squeaking and should allow the bushings to last a long time. My disappointment with this kit is in the ability to get grease into the wet bolts. I had to replace most of the zerk fittings as I couldn't get grease past many of the OEM fittings – the grease was blowing out between the grease gun coupler and the zerk fitting. I used three different grease guns, one of which was brand new. With new grease fittings installed, the grease was getting into the bolt. However, I had several wet bolts that needed a lot of encouragement to allow grease to flow out of the bolt and to the bushing. My biggest problems were with the wet bolts in the shackles. My tips on the above issues are: 1. Test every wet bolt before you install it. If you are unable to get grease past the zerk fitting, replace the zerk fitting. Don't waste your time. Dexter seems to be using very low quality zerk fittings. 2. If grease is getting past the zerk fitting but not out of the uninstalled wet bolt then you have a defective wet bolt. In this case, the outlet hole doesn't mate up to the hole drilled through the center of the bolt. If you're handy and have the right tools, maybe you can fix this. Otherwise, you'll be calling Dexter for a replacement. See below on replacement efforts I went through. 3. Look at your installed bushings. Are they circular or oval? Oval is going to be a problem. The wet bolt will be very reluctant to be installed into that bushing. I'm not saying it can't be done, but it's going to be a lot of work. Also, if the outlet on the wet bolt is on a squished section of the bushing, it may prevent grease from coming out of the bolt. Similarly, if the outlet on the wet bolt is on a non-squished section of the bushing then you may be getting grease out, but not spread throughout the entire bushing. 4. If your wet bolt tested OK _before_ you installed it, but no grease is coming out after is has been installed try these suggestions: 4a. Make sure there is no weight on the suspension. 4b. Move the suspension up and down with a jack, trying to find a sweet spot in the bushing where the grease can come out. 4c. Smack the leaf spring with a hammer. I can't explain this one, but it worked on one of mine. 4d. The next thing to try is loosening and then backing out the bolt - rotate the bolt a few degrees if you can. 4e. If none of that helped then try taking the trailer for a drive. That _might_ loosen the bolt/bushing enough to allow grease in (I didn't have to resort to this but it was on my list). 4f. Still having problems? Consider the PSI rating of your grease gun. I was using a 4,000 PSI gun and it wasn't enough. I stepped up to a 10,000 PSI grease gun that got the grease in. The heavier duty grease gun isn't going to solve all your problems, so don't buy one thinking it will be a Panacea. 4g. If you've tried all that, then consider contacting Dexter for a replacement. See below on replacement efforts I went through. 5. Clean the inside of the leaf spring eyelets. If you feel the need to sand the inside of the eyelet (they can be quite rusty) with 220 sandpaper, be sure to clean the debris from the eyelet. 6. Pre-grease the bushings and bolts. This will help them slide in better. If the above tips seem extreme, you're right. It shouldn't have been that difficult. I contacted Dexter to ask a technical question. The tech support person called me back in a good amount of time and was very helpful. He agreed that the zerk fittings should be replaced and provided other helpful information. He gave me the part number for the zerk fittings and said to call the service/warranty department. That's where things went downhill. When I tried to contact Dexter's service/warranty department I got stuck in phone system hell. I couldn't get a live person from that department on the line even though I was always #1 in line. Dexter's phone system would never let me leave a message for the people listed in the service/warranty department. I was always routed back to the beginning of the phone system or my call was disconnected. The live operator (a useless person) would only send me back to the service/warranty department area of the phone system. Dexter's online Contact Us web page was broken. None of my submissions through that page appeared to have worked. I kept getting an error. I tried two different browsers and they both failed. I sent an email to a general Dexter address, and that email was never acknowledged or returned. At the point I have submitted this review, I haven’t taken the trailer, with the suspension upgrade, out on the road. I’ll update the review if I feel the upgrade made a difference in the quality of the trailer’s ride. Given the difficulty I had with the install, my expectations are low. If the suspension doesn’t squeak or break, I’ll be happy. If I ever have to do this again, I'll try Morryde next time.