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Pinion bearing failure update with picture. #3006021
01/16/22 08:25 PM
01/16/22 08:25 PM
Joined: Aug 2003
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Bend,OR USA
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Cab_Burge Offline OP
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I finally got around to removing the pinion gear from my Cuda with the Dana 60, it had broken the rear pinion bearing cage at the local drag race last September when i put it in neutral from low gear and heard a weird noise and the car stop with a little jolt, maybe the rear tire turn less than a 1/16 of wheel rotation and stopped. shruggy
It was locked up, so I ended up having to take the rear end apart and remove the spool and ring gear to load it in the trailer with the winch wrench grin.
The rear pinion bearing cage got torn up badly after the pinion nut came loose and released the preload on the pinion bearings allowing the pinion shaft to slide backwards into the ring gear evidently when I was stopping in the tech inspection lane before racing.is what I found today scope
I dodge a BIG bullet on this boogie up
I can't imagine how bad this could had got if it had failed after letting off at 150+ MPH shock puke
i had driven it around on the pits to warm up the trans, engine and rear end lubes before making a pass and going to tech when it locked up work
THANKS be to GOD bow

SANY0222.JPG
Last edited by Cab_Burge; 01/16/22 08:37 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Pinion bearing failure update with picture. [Re: Cab_Burge] #3006024
01/16/22 08:32 PM
01/16/22 08:32 PM
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Windsor, ON, Canada
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Diplomat360 Offline
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Cab_Burge,
I see two attachments, looks like both are the same photo though.

Re: Pinion bearing failure update with picture. [Re: Diplomat360] #3006026
01/16/22 08:38 PM
01/16/22 08:38 PM
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Bend,OR USA
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Cab_Burge Offline OP
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Originally Posted by Diplomat360
Cab_Burge,
I see two attachments, looks like both are the same photo though.
FIXED now up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Pinion bearing failure update with picture. [Re: Cab_Burge] #3006028
01/16/22 08:38 PM
01/16/22 08:38 PM
Joined: Dec 2004
Posts: 10,239
Rittman Ohio
fourgearsavoy Online tonguue
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Rittman Ohio
So Cab you think the cage came apart then the rollers bound up the pinion ? I have never seen that in 35 years of working on drivelines but as we all know anything can happen in a drag car.

Gus beer


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: Pinion bearing failure update with picture. [Re: fourgearsavoy] #3006042
01/16/22 09:06 PM
01/16/22 09:06 PM
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Bend,OR USA
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Cab_Burge Offline OP
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It must have had one of the bearings get a little sideways when it slowed down after me putting the trans in neutral, I was barely moving when I moved the shifter from low (Powerglide) into neutral shruggy
Murphy loves messing us drag racers, all racers and hot rodders, huh work whistling


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Pinion bearing failure update with picture. [Re: Cab_Burge] #3006287
01/17/22 06:33 PM
01/17/22 06:33 PM
Joined: Apr 2006
Posts: 4,122
West Plains, MO
DrCharles Online content
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DrCharles  Online Content
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West Plains, MO
Originally Posted by Cab_Burge
I finally got around to removing the pinion gear from my Cuda with the Dana 60, it had broken the rear pinion bearing cage at the local drag race last September when i put it in neutral from low gear and heard a weird noise and the car stop with a little jolt, maybe the rear tire turn less than a 1/16 of wheel rotation and stopped. shruggy


Shoulda had an 8-3/4 stirthepot whistling

Re: Pinion bearing failure update with picture. [Re: fourgearsavoy] #3006319
01/17/22 08:54 PM
01/17/22 08:54 PM
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Bend,OR USA
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Cab_Burge Offline OP
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Originally Posted by fourgearsavoy
So Cab you think the cage came apart then the rollers bound up the pinion ? I have never seen that in 35 years of working on drivelines but as we all know anything can happen in a drag car.

Gus beer

I forgot to mention when I went to remove the pinion nut with the air impact wrench yesterday morning, I found the pinion nut was about 2/3 the way loose ready to drop off the pinion shaft shock confused
There was no warning or symptoms any drive train issue until it broke, I got lucky on this up bow It could have killed me and wreck the car work
Praise God for the help on not having it do worse than it did bow bow bow


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Pinion bearing failure update with picture. [Re: Cab_Burge] #3006339
01/17/22 10:00 PM
01/17/22 10:00 PM
Joined: Jan 2003
Posts: 1,848
Nebraska
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4406bbl Offline
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I have had the nut come loose before on a big tired 4×4, new gears and nut, was loctited and staked. I now grind the black off the pinion and silver off the nut and give it 4 tacks with a wirefeed.. easy to grind off later and could save your life. I also tack every u-joint cap after the shaft has run up to full rpm loaded if it is steel. Offroad tears sheet up as do racecars. Glad you are still here, that could have gotten nasty.

Re: Pinion bearing failure update with picture. [Re: 4406bbl] #3006423
01/18/22 09:11 AM
01/18/22 09:11 AM
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Anoka County, MN
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Leigh Offline
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I know I’m going to check the torque on mine now! 👍

Re: Pinion bearing failure update with picture. [Re: Leigh] #3007608
01/21/22 03:19 PM
01/21/22 03:19 PM
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Posts: 9,444
Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
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Frostbitefalls MN (Rocky&Bullw...
Originally Posted by Leigh
I know I’m going to check the torque on mine now! 👍

Me too! Cab, you have an angel riding shotgun🙂

Last edited by gregsdart; 01/21/22 03:20 PM.

8.77 153 mph best, 3055 lbs 528 indy 440-1 alky






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