Dennis. I have a drop axle on my truck Posie Super Slide Springs. Rears shocks are #5847 fronts are #5758. I believe they are Monroe spectrums . My truck is dropped five inches front and rear. Hope this helps. I can give you resting measurements tomorrow if you need them. I called Sid at Sids Drop Axle. Which is who did the axle for me. Without hesitation he told me what shocks I need. They work great and it rides good.
Jeff 1964 Chevrolet K10 Fleetside "A Kid's First Truck" Follow in the DITY 1951 Chevrolet 3100 Follow his build in the Project Journals 1969 Chevrolet Camaro Convertible | 2020 Chevrolet Silverado | 3500 Duramax | 2021 GMC Sierra Denali USAF Veteran 1983-1987 | PSP retired 1990- 2012