Dana 30 gear noise

I swapped out the pinion yoke on a late-model Jeep TJ/XJ/ZJ Dana 30 (low
pinion with crush sleeve), and tightened the pinion nut to 160 foot-punds.
Now I have gear noise when coasting that wasn't there before. My gut
response is to tighten the pinion nut some more. Am I out to lunch or is
this the thing to do?

/Peter

160 ft-Lb--- Holy Crap! The Dana Light Axle Service manual lists the
pinion bearing preload for a D-30 as 15-30 *IN-LB*.

--
jeff


Peter Pontbriand wrote:
> I swapped out the pinion yoke on a late-model Jeep TJ/XJ/ZJ Dana 30 (low
> pinion with crush sleeve), and tightened the pinion nut to 160 foot-punds.
> Now I have gear noise when coasting that wasn't there before. My gut
> response is to tighten the pinion nut some more. Am I out to lunch or is
> this the thing to do?
>
> /Peter
>
>

That's the preload, which I have no way of measuring. The 160 fb-lbs is what
I tightened the pinion _nut_ to, which is the minimum listed he
http://www.pirate4x4.com/tech/billav...ice_manual.pdf

/Peter

"jeff" > wrote in message
news:IHaBe.2$C15.1@trnddc08...
> 160 ft-Lb--- Holy Crap! The Dana Light Axle Service manual lists the
> pinion bearing preload for a D-30 as 15-30 *IN-LB*.
>
> --
> jeff
>
>
> Peter Pontbriand wrote:
> > I swapped out the pinion yoke on a late-model Jeep TJ/XJ/ZJ Dana 30 (low
> > pinion with crush sleeve), and tightened the pinion nut to 160
foot-punds.
> > Now I have gear noise when coasting that wasn't there before. My gut
> > response is to tighten the pinion nut some more. Am I out to lunch or is
> > this the thing to do?
> >
> > /Peter
> >
> >

Mispoke previously, pls ignore.

From the Dana Light Axle Service Manual:
Pinion nut is torqued between 160-500 ft-lb. With the wheels up and
straight, check the drive torque on the pinion nut. This should be
between 24 and 41 in-lb. (Preload calculated as: 15-30 for the pinion
bearing, 3 more for the seal, 6-12 for differential bearing preload).


Peter Pontbriand wrote:
> I swapped out the pinion yoke on a late-model Jeep TJ/XJ/ZJ Dana 30 (low
> pinion with crush sleeve), and tightened the pinion nut to 160 foot-punds.
> Now I have gear noise when coasting that wasn't there before. My gut
> response is to tighten the pinion nut some more. Am I out to lunch or is
> this the thing to do?
>
> /Peter
>
>