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10 thooth side axle 8 3/4 Diff.?????????? #969755
04/09/11 08:21 AM
04/09/11 08:21 AM
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mopar_man Offline OP
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a friend of mine just e mailed me and is looking for a set of side gears for an 8 3/4 diff. the C&P is 4:11 ratio .
He said there are only 10 teeth on the spline of the side axle hence the same on the side gears.
What application would have only a 10 tooth spline ?????
I always thought the normal spline on an 8 3/4 was somewhere around 30??? ( can't remember too old )
Anyway, thought i would throw it out there , maybe some of you guys/gals know where these would be available .

Re: 10 thooth side axle 8 3/4 Diff.?????????? [Re: mopar_man] #969756
04/09/11 01:00 PM
04/09/11 01:00 PM
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Newfoundland
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where is Dr Diff when you need him ?

Re: 10 thooth side axle 8 3/4 Diff.?????????? [Re: mopar_man] #969757
04/09/11 01:10 PM
04/09/11 01:10 PM
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Grand Prairie,Texas
stumpy Online content
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He's only a PM away.

Re: 10 thooth side axle 8 3/4 Diff.?????????? [Re: stumpy] #969758
04/09/11 01:40 PM
04/09/11 01:40 PM
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Pangaea
B5 Bee Offline
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Axles are 30 spline, so the side gears are too. Some pinions have 10 splines for the yoke. What's a C&P?

Re: 10 thooth side axle 8 3/4 Diff.?????????? [Re: B5 Bee] #969759
04/09/11 01:51 PM
04/09/11 01:51 PM
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Quote:

Axles are 30 spline, so the side gears are too. Some pinions have 10 splines for the yoke. What's a C&P?




I'm guessing he meant R&P ring & pinion

I'm also wondering if the axle in question is very early & not really an 8.75 at all, Chrysler had a similar axle in the 50's that could be mistaken for an 8.75...

To the original poster is there a number cast on the side of the carrier? 8.75's were 657 (Early) 741, 742 & 489

As the previous poster mentioned the early 8.75's did have a 10 spline pinion but the axles should be 30 spline..


"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."
Re: 10 thooth side axle 8 3/4 Diff.?????????? [Re: mopar_man] #969760
04/09/11 02:26 PM
04/09/11 02:26 PM
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U.S.S.A.
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Quote:

where is Dr Diff when you need him ?




Probably in vegas ?

Re: 10 thooth side axle 8 3/4 Diff.?????????? [Re: mopar_man] #969761
04/09/11 03:07 PM
04/09/11 03:07 PM
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Rio Linda, CA
John_Kunkel Offline
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No 8 3/4" ever had 10-spline axles, however the early 8 1/4" did have either 10-spline or 16-spline axles and they were a dropout that closely resembles the 8 3/4".

The early 8 1/4" 3rd member has 11 attach bolts instead of 10 like the 8 3/4".


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Re: 10 thooth side axle 8 3/4 Diff.?????????? [Re: John_Kunkel] #969762
04/09/11 03:29 PM
04/09/11 03:29 PM
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Newfoundland
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mopar_man Offline OP
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Thanks you for all your replies, I will pass on this info.

Re: 10 thooth side axle 8 3/4 Diff.?????????? [Re: B5 Bee] #969763
04/10/11 08:57 AM
04/10/11 08:57 AM
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Newfoundland
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Quote:

Axles are 30 spline, so the side gears are too. Some pinions have 10 splines for the yoke. What's a C&P?




Sorry , us Newfies have too much "old England" in us.
You say ring and pinion .......we say crown and pinion.
Thanks for the info .

Re: 10 thooth side axle 8 3/4 Diff.?????????? [Re: mopar_man] #969764
04/10/11 01:00 PM
04/10/11 01:00 PM
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1_WILD_RT Offline
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Quote:



Sorry , us Newfies have too much "old England" in us.
You say ring and pinion .......we say crown and pinion.
Thanks for the info .




Moparts.. The place we learn new (old) languages..


"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."






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