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Old 10-06-2015, 11:08 AM   #1
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Exclamation Cast Iron Diff Housings don't just belong on Manual Trans Cars: Broken Aluminum Diff

I had a long weekend of breaking parts at the track this weekend at NMRA Bowling Green World Finals.

First pass off the trailer - heard a very loud snap right on the launch. I snapped the ears right off the diff housing, on the front side.

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Old 10-06-2015, 11:20 AM   #2
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That sucks. I'll bet we see more of this issue in the near future
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Old 10-07-2015, 11:24 AM   #3
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What kind of power is it making? Must be leaving pretty hard.

-Steve
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Old 10-07-2015, 12:13 PM   #4
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Product opportunity!
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Old 10-07-2015, 01:34 PM   #5
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Well I'm glad I'M not the one that found that out.

Bravo for research, I would be pitching a total fit if that was my car.
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Old 10-07-2015, 01:57 PM   #6
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What kind of power is it making? Must be leaving pretty hard.

-Steve
I am not sure.

It did cut a 1.40 sixty on the pass that destroyed the diff.

It traps 145-146 range at 3850lbs.

So it makes some power.

Auto, stock converter, stock trans, 3.15 gear.
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Old 10-07-2015, 05:21 PM   #7
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1.4 60' with stock converter and 3.15 gears.



Mother of god
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Old 10-07-2015, 05:45 PM   #8
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Sooooooooooooooooooooooo voided the warranty brah!
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Old 10-07-2015, 05:53 PM   #9
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so whatll it take to strengthen that so it doesnt break again?
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Old 10-07-2015, 05:53 PM   #10
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Sooooooooooooooooooooooo voided the warranty brah!
Nah just bring it in as is, they'll be cool about it!
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Old 10-07-2015, 06:48 PM   #11
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This is what happens when you abandon our axle brace, Kelly.
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Old 10-07-2015, 07:03 PM   #12
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What do you want to bet Kelly is already hard at the drawing board designing a steel wrap around support bracket to reinforce those cast iron mounting tabs?
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Old 10-07-2015, 09:10 PM   #13
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What do you want to bet Kelly is already hard at the drawing board designing a steel wrap around support bracket to reinforce those cast iron mounting tabs?
Ummmmmm.....

Are you tapped into my phone? I've been texting my product design engineer for the past hour brainstorming a brace to make up before this weekends race.

Lol...
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Old 10-07-2015, 09:25 PM   #14
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if you have been doing anything but brainstorming a brace for that since you broke it, your doing it wrong.

how long until someone CNC machines a billet diff housing and over-engineer's the shit out of it? :P
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Old 10-07-2015, 09:42 PM   #15
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Ummmmmm.....

Are you tapped into my phone? I've been texting my product design engineer for the past hour brainstorming a brace to make up before this weekends race.

Lol...
Be sure to CC your buddies at UPR so that they can release their Chinese version for $10 cheaper within 4 weeks.
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Old 10-07-2015, 10:42 PM   #16
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Is that cast aluminum or iron? Looks aluminum to me.
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Old 10-08-2015, 08:02 AM   #17
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Kelly, you should tweet the housing pics and details to @FordPerformance (attn Dave Pericak, the 2015 mustang chief engineer). They may be interested in getting it back to study it.
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Old 10-08-2015, 08:12 AM   #18
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Log axle ftw!
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Old 10-08-2015, 08:50 AM   #19
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Can't you just run one of the cast iron housings? Seems like that would be the easiest solution.
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Old 10-08-2015, 08:50 AM   #20
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Was this the bolts that sheered off that you were talking about when your wife cracked the whip on you to get this shit done and in the 8's?
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