Just bought these for my 1994 motorhome. It is based on a Dodge 3500 chassis. The rear began to fail over the years. It came with a set of airbags to support the weight and length of the unit. They couldn't keep up his level. These shocks could easily restore the plus level. All in all I am a happy camper! (pun intended) I would recommend these to anyone who needs extra lift for pickups etc. I've used them on other vehicles for years, so I'm very familiar with this product. The shock absorbers fit perfectly and came with an air kit. They were made in Mexico. I don't know why, but I liked "Made in Mexico" more than anything "Made in China".