I have a D60 and Sterling 10.50 that a guy may want to buy to put under his 70s ford truck. Will the spring perches even be close? What is the WMS width of this D60 and sterling?

Thanks, Will.

wms doesn't matter. perch to perch is all that matters. Seems to be about a 5 inch difference in width. check it out here.
http://www.pirate4x4.com/tech/billavista/60_front/