The best thing to do is take the shank from the Reese and use it in place of the shank on the EZ lift, provided it has more drop than the EZ lift shank.
The shank is the L shaped piece that plugs into the trucks receiver and has a row of holes in the vertical section of it. The hole spacing is standard between brands.
Charles
'03 Ram 2500 CTD, 5.9HO six speed, PacBrake Exh Brake, std cab, long bed, Leer top and 2008 Bigfoot 25B21RB.. previously (both gone) 2008 Thor/Dutchman Freedom Spirit 180 & 2007 Winnebago View 23H Motorhome.