First of all, I really like the products that Energy Suspension makes. Unfortunately, they missed the ball here. Bushings do not fit K5 Blazer 78-80. They want you to reuse the factory seals in positions 1, 2 and 3. seals; 2 1/8" long on the radiator bracket when installed, the gasket protrudes through the bushings approximately 1/8" which never allows torque on the bushings. Spacer number two is 2 3/8 inches. This will shrink the cone by about half an inch. Position three spacers are only 1 and 3/4 inch. The original top binding in position 3 is also an eighth of an inch thinner, so you'll have to crush that top binding in that position somehow. Also, if you use this original gasket, you will compress the cone about three quarters of an inch. I'm posting this so no one is wasting their time or installing these things incorrectly.