50 Inch Axle Spacing - Early Production
Rear - Tandem Two Spring Suspensions
SWD, SWDL, SWS, and SS - Series Camel Back Spring Suspensions
General Description:
- 4" wide springs.
- 34,000 lb through 50,000 lb suspensions.
- 50" axle spacing.
- Early production: 1 3/4" end holes on PL-1 and 1 1/4" end holes on PL-3. Use pair codes to identify springs that are similar except for the U-bolt plate (JP).