Hot to tell if 9" axle is small or large bearing?

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ForceFed70

That's why they call it "dope"

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#1

• Jan 14, 2007

• #1

How to tell if 9" axle is small or large bearing?

Is there any way to tell other than measuring the size of the bearings?

MY 1970 Grande came with a factory 28 spline 9". I'm guessing it's the small bearing 9", but would like to know for sure before ordering parts.

Can anyone tell me the size of the small and large bearings?

 

F

ForceFed70

That's why they call it "dope"

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Dec 6, 1999

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#2

• Jan 14, 2007

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Doh! Wish it would let you edit the title!.

 

ultrastang

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#3

• Jan 14, 2007

• #3

If it's a '70 Grande, then your car should have a small bearing rear end. Easiest way to tell is by the 4 T-bolts that holds the drum backing plates onto the housing's end flanges.

If the T-bolts are 3/8" diameter (requires a 9/16" socket to remove the nuts), then it's a small bearing housing.

If the T-bolts are 1/2" diameter (requires a 3/4" socket to remove the nuts), then it's a large bearing housing.


www.ultrastang.com

 

DK832

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Apr 11, 2006

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Copenhagen, DK

Jan 14, 2007

#4

• Jan 14, 2007

• #4

BottleFed70 said:

......

Can anyone tell me the size of the small and large bearings?

Click to expand...

The small bearing is just short of 72mm OD or 2.8346 in.

 

ultrastang

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#5

• Jan 14, 2007

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Large bearing is 3.150"

 

F

ForceFed70

That's why they call it "dope"

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Jan 14, 2007

#6

• Jan 14, 2007

• #6

Great! Thanks guys.