Which differential bearings? Pinion bearing? Carrier bearings? End axle bearings?
To replace the rear axle pinion bearing on an '84 GMC Vandura, first, safely lift and support the vehicle, then remove the driveshaft and any rear axle cover. Next, remove the pinion nut and yoke to access the pinion gear. Carefully pull out the pinion assembly, replace the old bearing with a new one, and reassemble by reversing the steps, ensuring proper torque on the pinion nut and checking the bearing preload. Always consult a repair manual for specific torque specifications and procedures.
If this helps the sailsbury axle of a cortina details are crownwheel and pinion backlash 0.004-0.008" pinion bearing preload 0.001-0.003" collapsible spacer length 0.453-0.461".
remove rear drive shaft. remove pinion yolk from front of diff.remove oinion seal replace with new one. replace pinion yolk, replace driveshaft,.. dhceck ujoints of drive shaft while out, its a good time to replace them
Preload is the amount the pinion bearings are squeezed together by the pinion nut.
remove rear drive shaft from vehicle.remove large nut ( pinion nut) at front of diff, which is generally hidden when driveshaft is in place.with a bearing puller remove pinion bearing, replace with new one. install new pinion seal. reinstall pinion cover and pinion nut. tighten to specified torgue.reinstall driveshaft check diff oil for proper amount
Rear differential in a rear wheel drive vehicle
What is the torque specs on a 2001 ford truck rear end pinion nut..
It could be axle bearings, however it is more likely a pinion or carrier bearing since you say the noise seems to be coming from the differential housing. With the vehicle up on a lift around 45 mph, use a mechanic's stethoscope to help pinpoint the noise. You should be able to at least determine if is coming from the axle bearing or the differential, sometimes you can tell if it is a pinion bearing (noise more pronounced near the driveshaft) or if is a carrier bearing (more pronounced near the rear cover).
In order to replace the rear wheel bearing you will need to find the axle shaft bearings and remove them. They are located at the center of the housing where the ring and pinion gears and at the axle end near the wheel mounting position.
Remove driveshaft, remove pinion nut, remove rear cover, remove axles, remove differential. Push pinion out through housing.
The shim between the inner bearing and the pinion is critical and if it's lost you need special tools to set the pinion depth. replace the bearings and seal with an new crush sleeve thighten the pinion nut until the sleeve crushes and you can't move the pinion up and down. Then very slowly tighten the pinion nut checking the rotational torque. You will need an inch pound torque wrench, when the preload is correct it should take between 20-25 inch pounds of torque to rotate the pinion. If you get it too tight you need to replace the crush sleeve and start over. Proper bearing preload and gear mesh are critical.