Our heavy duty Mustang II platform configured with air bag suspension for heavier truck applications. It has a front track width of 62.5″, air bag suspension offering a spring load rate of up to 2500 lbs and ride height adjust-ability of 6″ total. Power steering rack and pinion, 5 x 4.5″ or 5 x 4.75″ wheel bolt pattern and a 2″drop spindle. As always Uncle Jimmy’s Jalopy’s provides complete easy to understand written instructions with service after the sale! Including one on one telephone tech support if needed.