honestly, i would worry about the axle snapping before the boot melts(especially with brand new boots). I didnt realize you were using the ea axles still!
http://www.ebay.com/itm/Momo-Subaru-Steering-Wheel-Hub-MO-7303-1980s-Cars-/271041926809?pt=Motors_Car_Truck_Parts_Accessories&hash=item3f1b5b9699&vxp=mtr
Here is one.