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 Rear axle bearing choice 
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CCFBG Club Member

Joined: Sun Sep 26, 2010 8:24 am
Posts: 342
Location: 400 Northbound
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Post Rear axle bearing choice
I'll probably be spec'ing a new rear axle assembly soon.
Here's a question. Tapered roller bearing or sealed ball bearing for an all around application? There'll be more road miles (and possibly road course or autocross) than drag racing or plain cruising. But certainly both.
What the best choice and why? Sources? Articles?

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Thu Oct 11, 2012 9:20 am
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Joined: Mon Feb 01, 2010 12:26 pm
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Location: Ottawa
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Post Re: Rear axle bearing choice
Assuming a non c-clip axle..

Would the sealed ball bearing even have sufficient side load capability?
They typically don't have much.

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Formerly 95 LT1 [LE2.2]/T56/4.11 9 Bolt..12.6@114MPH


Thu Oct 11, 2012 12:21 pm
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Joined: Sun Sep 26, 2010 8:24 am
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Location: 400 Northbound
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Post Re: Rear axle bearing choice
My thinking too although the ball bearing is supported on both sides, certainly enough to give it enough durability for some street duty. At least I would hope so.
And yes...definitely a non c-clip application.

What are the road racers of CCFBG using?

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Thu Oct 11, 2012 12:37 pm
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Post Re: Rear axle bearing choice
Taper bearings are a one shot deal. Install them and never worry again. Not a fan of the cheap roller bearings myself. They fail fairly often and are leak prone.

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1987 IROC ww 99 LS1,TR224/112, STG2 heads ported by American Speed, P Gold springs, LS6 intake, SVO 30's, Ported TB, Comp Cromo Push rods, Katech Rod bolts, LS6 oil pump, T56, SW LT's, 8.8 hybrid rear 3.73, 275/40/17 MT ET streets, lots more
12.1 @ 112 mph 1.69 60'

89 R7U 1LE Players Challenge car all stock.


Thu Oct 11, 2012 4:37 pm
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Joined: Sun Sep 26, 2010 8:24 am
Posts: 342
Location: 400 Northbound
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Post Re: Rear axle bearing choice
I appreciate your reply considering from what I know, you're a road racer. (At least from your Avatar and your postings).
Yes, that's my understanding. I can't see how a plain roller bearing could handle the side loads as compared to a tapered bearing. My associates are mostly straight line guys and they're all up in arms regarding my (potential) choice.
Thanks for the input.
Soon it'll be time to open a discussion on choice of limited slip differential (I have have a hard time using the term LSD!)

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Thu Oct 11, 2012 6:52 pm
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Post Re: Rear axle bearing choice
Racer? Ummm no racing going on here... I'm just an old fart cruising around enjoying good machinery

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1987 IROC ww 99 LS1,TR224/112, STG2 heads ported by American Speed, P Gold springs, LS6 intake, SVO 30's, Ported TB, Comp Cromo Push rods, Katech Rod bolts, LS6 oil pump, T56, SW LT's, 8.8 hybrid rear 3.73, 275/40/17 MT ET streets, lots more
12.1 @ 112 mph 1.69 60'

89 R7U 1LE Players Challenge car all stock.


Thu Oct 11, 2012 7:22 pm
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Location: 400 Northbound
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Post Re: Rear axle bearing choice
cam wrote:
... I'm just an old fart cruising around ...


Same here. Thanks for the input just the same. Seeing the Players car in your signature had me a little confused. You know...old age creeping up on me.

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Fri Oct 12, 2012 9:47 am
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