Here is a new mount part # 17090 to fit the Meyer EZ classic mount to a 1973-1993 Dodge W150 or Ram Charger With the 4000 LB front axle. If you have the Heavier front axle or your vehicle is lifted you should use the 17099. This is the complete undercarriage you get the clevis # 11270, the 2 rear arms 10426 and 11185 2 side plates 11266 and all the hardware #08598. This does not come with the tubular lift frame you will need to get that if you don't have it the lift frame only fits the full size trucks lift frame part # 11255.

If you need some measurements from Center to center of the tube it is 23.5"

and center to center on the A frame ears are 23.5".

Here is the parts list and Installation Instructions for 17090