Custom Extension Screw Collar chain The OEM ProMaster scissor jack

The OEM ProMaster scissor jack is limited to two underbody engagement points and carries multiple restrictions in its official jacking instructions — including warnings not to exceed minimal clearance or to ever place yourself beneath the van

) If the hydraulic cylinder (ram) is significantly smaller than this

Compatible with autopilot systems

Compatible with all U

Recommended for motors less than 79 Horsepower with up to a 12" Diameter Prop

Custom Extension Screw Collar chain The OEM ProMaster scissor jackThe Safe Jack Extension Screw Collar (ESC) is a device made from highly durable PLA carbon fiber that wraps around your bottle jacks extension screw, acting as the universal, secure engagement for our Extensions and Lift Pads. The ESC also provides the operator with 100% available stroke of the jack and maximizes the height to an additional 1. 5 inches. Our premade Extension Screw Collars are measured specifically for the bottle jack brands we carry.