Dryer squeaked while running

Replaced the recommended drum rollers, belt and tensioner, light bulb. Found repair manual online (bit of a hunt)made job easier still took 2.5 hrs. Then turned drum by hand no squeak. Turned it on and still squeaked. Isolated to motor. Replaced it (had to take dryer completely apart again but went quicker due to experience also had to disassemble the motor assy and rebuild. Took 1.5 hrs works like new now. The design of the dryer is not bad remove bottom front panel first, screws at very bottom of panel then two more screws are uncovered to remove front. It just lifts up and pulls out. then remove four bolts which hold front frame on (supports drum) all this has to be done to reach the replacement parts. drum wheels are held on by snap rings not the screws (real fun if you take them out) reverse to reassemble.