Want this question answered?
What is the torque specs on a 2001 ford truck rear end pinion nut..
trying to replace rear pinion bearings 1993 ford aerostar, 7.5 rear differential...slinger washer on drive shaft side is stuck, cant get pinion shaft out, all differential parts have been removed...any suggestions?
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.
THE TORQUE SPEC IS 75FT/LB USING ARP BOLTS
The pinion seal is shot. A mechanic can replace the seal and check for problems.
the recommendation for the differential housing cover bolts is 16 ft. lbs.
77ft lbs
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".
The only torque you should be concerned with is the torque it takes to rotate the pinion gear alone, 8-14 inch pounds for old bearings, 16-29 in/lbs. for new bearings. The torque it takes to crush the crush collar (tightening the pinion nut) will be above 140 foot lbs. and this will set your tension on the pinion bearings. If you put a new crush collar in you are going to have to remove axles and carrier to get the proper pre-load on the pinion bearings.
29-33 ft. lbs.
23nm/17 ft-lbs
Your Pinion seal on the drive shaft and rear differential need to be fixed.