i have been told my SPFP2116 has 911/930 axles. ok, so far. now i have torn inner boot. and i have disconnected axle at RBT trans. now my question is how to remove axle from upright. any help would be appreciated. also i have been to "Pacific Customs" on the net and the are advertising a double boot. it goes over the inner boot. anyone tried that yet? as i was working back there i lifted on the threaded axle shaft with brake disc attached and there was a very slight movement, up and down. i would say half of a 1/64th. went to other side and lifted on mounted wheel/tire. same thing. very small movement. just went to garage and checked the still mounted wheel and tried to move from side to side. could not perceive any movement probably because of weight.