cant i swap the flang off the 7.5 and put it on the 8.8.
No, the pinion gear of the 8.8" uses a different spline than the 7.5" axle so your small flange won't fit the 8.8" pinion.
BTW, if you don't already have one a one-piece shaft from a 1988-up is a "bolt-in" with the large flange of the Explorer axle.
NORMALLY on an '88-90 Ranger Supercab you have to either put a larger flange on your rear axle OR find one of the "small" front companiun flange adapters that are normally used on the FRONT of a 98-00
one-piece supercab driveshaft.
BTW, you not only have to put spring perches on the tops of the
axle tubes but you also have to add shock mounts, the explorer
axle doesn't have shock mounts because the shocks mount to
the spring plates, not the axle like on a Ranger
the EASY way to gett spring mounts to put
on the explorer axle tubes is to buy them NEW from Moroso, Competition Engineering, Jegs or Summit.
they usually run about $25 for the pair.
AD