SUGGESTED SIZING CHART FOR JIFFY JACKS

HORSE TRAILERS:

AXLE TYPE      TRAILER USE       LOADED WEIGHT          J.J.SIZE

Torsion Bar        2-3 Horse           Under 8000 Lbs.               Small

Torsion Bar        4-6 Horse           Under 14000 Lb.               Medium

Torsion Bar        Large Stock or   Under 20000 Lbs.             Large

                           Implement

Leaf Spring         2-3 Horse           Under 8000 Lbs.               Medium

or Slipper Spring 4-6 Horse           Under 14000 Lbs.             Large

                           Large Stock         Under 20000 Lbs.             X-Large

                                or Implement

RV'S:

AXLE TYPE     TRAILER USE   LOADED WEIGHT             J.J. SIZE

Torsion Bar          Up to 20'              Under 5000 Lbs.          Small

Torsion Bar          21-30'                  Under 14000 Lbs.            Medium

Torsion Bar          31' and up            Under 20000 Lbs.            Large

Leaf Spring           Up to 24’              Under 8000 Lbs.              Medium

Leaf Spring           28' and up            Under 140000 Lbs.          Large

Leaf Spring           35' and up            Under 20000Lbs.              X-Large NOTES:

For Boats and other tandem axles trailers please use the weight guide to determine approximate J.J. size.

These charts are not absolutes, as there may be some varying factors such as size and types of tires. However, the chart will generally be a close Indicator of the correct J.J. size

It is important to select a Jiffy Jack with enough lift to raise the other tandem axle high enough to remove a flat tire and replace it with a fully inflated tire. A Small J.J. will lift 5 1/4", a Large will lift 8 1/4" and a X-Large will lift 7 1/4".