I live in Zambia Africa. The shocks I bought were for a 1997/98 Toyota 4Runner (Hilux Surf). The kind of driving I do tends to be a lot of bush, very bad dirt roads and occasional long distance blacktop driving. The blacktop driving includes swerving to miss and occasionally hitting, large potholes. The truck is stock with no lift and standard 165 70 16 tires. The shocks I replaced were original equipment (Tokiko) and the vehicle is a 2.7 liter/automatic/4WD with nearly 100,000 miles on it. I travel with the vehicle either empty, or loaded with up to 10 people and gear. FWIW, I've also installed the Firestone air springs to deal with the saggy rear coils. They absolutely work great and the performance mated to these shocks (I had concerns) is just terrific. My use of these shocks far exceeds anything that folks in the States will experience and I needed the best I could get. After looking at Bilstein, Rancho and the raft of US branded shocks, I went with the KYBs. The Heavy Duty designation is what attracted me initially and past experience with the brand, coupled with the online reviews I read convinced me. The ride is firm and not unlike what you might expect in a sports car. If you're a soccer mom or someone with an excessively delicate derriere, these may not be for you. On the other hand, I just drove 500 miles from Mansa to Lusaka and found the trip to be very comfortable. The handling has improved dramatically and the performance of the truck on uneven pavement and dirt roads is far, far better than it was. There is probably not an ideal shock absorber for what I do, but if there were/is, it would look a lot like these KYBs.