Do I need a new pinion nut?
Do I need a new pinion nut?
Do not replace the pinion nut. You need to count the number of turns on the nut when replacing the pinion seal to get your bearing preload back.
How much torque does a pinion nut have?
It takes about 300 foot pounds to crush the sleeve initially. After it has been properly crushed (by checking the rotating resistance of 19-22 inch pounds on the pinion) there should be at least 150 pounds torque on the pinion nut (or else you pull it apart get another crush sleeve and start over).
How big should the pinion nut be on a Camaro?
19-22 inch pounds is what it needs to be! Of course I’m talking about the bearing preload on a properly torqued pinion nut will yield that value as the nut rotates. It takes about 300 foot pounds to crush the sleeve initially.
How does a crush spacer work on a pinion nut?
EDLANTA there is a “crush” spacer between the two pinion bearings that when tightened properly gives you the proper bearing preload. Since you apparently didn’t take any measures to “reference stake” the pinion nut you are now kinda in the woods for preload. Those crush spacers don’t really like to be crushed twice.
What kind of torque does larger Dave give?
‘Larger Dave’ is giving you the Rotational Pre-Load for the pinion. The actual torque required to achieve that preload will vary dependant on the rear end condition and set-up.
How is torque measured on a pinion nut?
There is no actual torque spec for the pinion nut. You tighten it until you get the correct amount of “drag” (actually called the pinion bearing preload) on the pinion bearing. This is measured in inch lbs with a dial type torque wrench.
How big is the torque cap on a pinion?
Pinion Preload (Reused) Ring Gear Backlash Ring Gear Bolt Torque Carrier Bearing Cap Bolts Chrysler 7.25″ 12 to 14 in-lbs. 6 to 7 in-lbs. .006″ to .010″ 55 ft-lbs.
What’s the difference between spec and pinion gear?
The spec measures the torque required to turn the pinion gear by itself once the nut is tightened. The spec is NOT the torque applied to tighten the nut. That is whatever it takes to achieve the pinon bearing pre-load which is determined as described above.
Can you change the bearing preload on a pinion nut?
If the new yoke and old yoke are as little as .005 inch different in thickness then your pinion bearing preload will be way off. Torquing the nut will not change the bearing preload.
