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#1
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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 |
#2
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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 > > |
#3
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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 > > > > |
#4
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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 > > |
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