2014 Silverado LTZ 4x4 Crew cab regular bed (6'6"). It was time to replace the shock at 100,000 miles, with all having a good review on the 5100 decided to replace the shock with them. Ordered from Amazon the rears came in first, installed them then waited until I had time for the front and need a spring compressor. The rear were about 2 in longer than the OEM shock. Did not think this would make a difference. The drive in town was improved, but on the Interstate on smooth road was quite and smooth. When you get to an inperfection on the road meaning not smooth or have little speed bumps. I get the worst trampoline effect the bigger the bumps the harsher the effect.
Installed the front at the lowest sitting thinking this would solve my problem, nope same result when going over the bumps. Going off road I have no problems with cause I expect these things, but on the highway its different. Raised it to its highest setting the 4 which leveled the pickup liked the look very much. An again this did not solve my problem. I have these on for about 22,000 miles and every time on the same stretch same result the trampoline effect.
I also have clamp the leaf springs 5 in forward of the axle. This helped less trampoline effect. This make me think that I need to add a leaf to my rear springs.
Has any body else have or had this problem? What did you do to fix it? Am giving these another 10,000 miles and going back to stock an just use blocks to level the truck or go with Eibach or another brand.
Thank you.