31 spline kit???

GTA_V6_Mustang

Active Member
Nov 29, 2004
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Miami, FL
I was looking around on e-bay and ran across this
http://cgi.ebay.com/ebaymotors/NEW-...sories&fits=Model:Mustang&hash=item35ae62532d

Now my question is, would that work. I mean I guess it should right... The only difference is the spider gears that are splined for 31 spine so you should be able to sway out the 28 spline gears for 31 spline right?:shrug: Just wondering, thought this was interesting and maybe could be an affordable alternative to anyone looking to beef up their rear end on a budget.
 
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GTA_V6_Mustang

Active Member
Nov 29, 2004
1,326
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Miami, FL
Not trying to do anything really, Just curious if it was possible with a kit like this? Like I said before might be an interesting thing for people looking to upgrade their 28spline trac-lok to 31.
 

srtthis

the guy doing it does every local racers rear end
10 Year Member
Jul 3, 2009
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www.crazybobracing.com
ive asked about it before and i dont think anyones actually tried it. mostly got the answer thats the 31 spline trac-lok housing was bigger then a 28 spline housing
 

cjrpony

Member
Jan 23, 2010
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ive asked about it before and i dont think anyones actually tried it. mostly got the answer thats the 31 spline trac-lok housing was bigger then a 28 spline housing
I have heard the 31 spline housing is bigger also, but can't confirm. It would be cool if this would work, make it alot easier to upgrade axles.
 

2000xp8

SN Certified Technician
Aug 8, 2003
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I dunno, this seems like a spend less now, spend more later solution.
A 31 spline 03 cobra carbon rear complete is only like $250 new if you shop around.

And if the rear is out, it should get a rebuild and the clutch pack is like $100 alone, you would be like $200 in an experiment that only saves $50.

I wouldn't even consider it.
 

GTA_V6_Mustang

Active Member
Nov 29, 2004
1,326
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Miami, FL
ok well I did some more research into it and it wont work. The spider gear cross shaft is bigger in a 31 spline diff so it wont fit a 28 spline housing.
 
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