Review on Daystar Suburban Avalanche Transmissions KG09103BK by Jeff Drollinger

High-quality product from American production. An easy way to add 3/4" to your rear suspension. Although they were designed for the Tahoe/Yukon, they will also fit the Envoy/Trailblazer with coil springs (no air spring). I have an Envoy Denali that originally had air springs rear and 245/60R18 tires (the only car I know of that uses this size). Having been out of production for six years the choice in this size is limited. I had to get a 2" Tailoring suspension to fit more common truck tire sizes; I ended up with 265/65R18 which is the stock Z71 Silverado tire. I set the coil springs and BDS raise kit to 2". The kit raised the front a full 2" but only the back by 1 1/4". The squat was noticeable, although the difference was less than an inch. That's why I ordered them. With spring compressors compressing the coils, they slipped right in. At most In cars, you don't even have to compress the springs, but since I have a BDS metal washer over them, I had to. It is usually sufficient to jack up the car and unscrew the shock absorber to remove the spring or install these spacers.