Recently decided to try to improve the ride by removing the new stock replacement rear springs with 2” drop springs. When I was able to measure the new 2” drop springs vs the oem springs, I found the drop springs were only 1/2” shorter than the oem’s. However, the oem springs are progressively wound, where the 2” drop springs are straight wound. I had read that the straight wound springs would give a better ride. After installing the new springs I measured the drop and found it had lowered the rear of the truck about one inch, which was fine with me.. Installation was easy since everything was clean, rust free & coated with never seize. A few photos below.
1966 C-10 Short Stepside HiPo Step-by-step ~ and on-going resto build in the Project Journals