andres629
+1y
I know it's kind of an old thread, but I have a few answers about 8.8 stuff... I know the Explorer 8.8's are a 59.5 wms to wms. 95-up have disc brakes, 91-94 are drums. 90-92 RANGER 8.8's (which were only offered in 4.0L Rangers) have a wms-wms of 56.5, and the 93-up Ranger 8.8's are 58.5. However, the Ranger axles never had disc brakes. You CAN swap the Explorer disc setup onto the Ranger axle with ease, though. Another difference between the Ranger and Explorer 8.8's are the axle spline count. Ranger axles are 28 spline, Expo axles are 31 spline. Really not a monumental difference, just makes a difference if you're putting down big power. The weak point in the 8.8 is the carrier, so if you're doing a high HP setup then you may want to consider a "full case" locker or limited slip setup, such as a Detroit True-Trac. Many Explorer axles came factory limited slip, and gear ratio range all the way from 3.08 all the way up to 4.10. I don't know the spring perch width on a Mazda, but an Explorer is 39.5 center to center on the perches. Rangers are the same, except they are spring over.
Can't shed any light on the front conversion, that's why I'm here!