9" Rearend Question

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wickedmach1

New Member

Apr 8, 2003

376

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Austin, TX

Dec 22, 2003

#1

• Dec 22, 2003

• #1

Any problems with installing 31-spline axles in a small bearing rearend housing? I understand that the 31-spline axles only were installed using the large bearings. What problems could arise if any? Thanks.

 

Edbert

Founding Member

Jul 13, 2002

3,548

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109

Austin TX

Dec 22, 2003

#2

• Dec 22, 2003

• #2

wickedmach1 said:

Any problems with installing 31-spline axles in a small bearing rearend housing? I understand that the 31-spline axles only were installed using the large bearings. What problems could arise if any? Thanks.

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They'll fit, 35s or 40s are too fat though. No problems other than the additional weight and parasitic loss.

 

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wickedmach1

New Member

Apr 8, 2003

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Austin, TX

Dec 22, 2003

#3

• Dec 22, 2003

• #3

I guess it is a stupid question to ask if pre-mature bearing failure is possible? What can I expect? Anyone running the small bearings and 31-splines?

 

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D.Hearne

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Sep 29, 2000

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south louisiana

Dec 22, 2003

#4

• Dec 22, 2003

• #4

I'm running 31 spline axles with 9 inch small bearing ends in an 8.8 rear, no problems so far other than adapting my brake backing plates to the housing. Then again the bearing ends are the super small ( smaller than the small 9's ) Stang/ Ranger 7.5/ 8.8 brake pattern.

 

9

96 DOHC Cobra

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Oct 14, 2001

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Cerritos, CA

Dec 22, 2003

#5

• Dec 22, 2003

• #5

All the BOSS and CJ Mustangs, Cougars, Fairlanes, and Torinos came stock with 31 spline axles in small bearing housings.