In general an axle is a centre shaft for a rotating wheel or gear. So In general axle shaft is on which the hub of the wheel is mounted. In a rear wheel drive, on side on the axle is attached to the differential assembly and the other side is attached to the hub.
The average cost of a vinyl replacement window is between $400-$575 per window for a double hung. That price includes the cost of the new vinyl replacement window and the installation of it. The big difference in price would be for reasons like the manufacturer of the vinyl window (which series you go with in their line), grids, low-e and argon gas for example. Vinyl casement pocket replacement window:
The average cost of window installation is $125 per opening for a standard sized casement or double hung. Find prices for inserts, standard and full frame replacement installation. Average Cost of Window Installation The average cost of window installation is $125 per opening for a standard sized casement, double hung or slider. The biggest factor that determines price is the overall condition of your sills and jambs.