New differential break-in?

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Aug 28, 2009 | 06:40 AM

CPG1962

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Melting Slicks

Joined: Jul 2008

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St. Jude Donor '09-'10

New differential break-in?

Just changed out to an RPM differential. What is the normal break-in procedure?

Aug 28, 2009 | 07:04 AM

BlackZ51Vett

Le Mans Master

Joined: Dec 2005

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From: Vail, Arizona

I dont know if they have specific instructions. If they did they should have told you. I would at least take a few hundred miles and vary speeds. No substained driving at high speeds. Other than that I would say you'll be good......

Aug 28, 2009 | 08:43 AM

TrenAman

Drifting

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they told me 500 miles

Aug 28, 2009 | 10:32 AM

Ragtop 99

Safety Car

Joined: Nov 2007

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From: Bethesda MD

I would ask them.

When I did a strange 12 bolt in my F-body, the break-in was 5 heat cycles. Each heat cycle needed to be 25 miles of continous driving with at least an hour cool down between cycles.

Aug 28, 2009 | 01:34 PM

5 Liter Eater

Le Mans Master

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From: Houston TX

St. Jude Donor '11

I would also do some figure eight's in a parking lot to work the clutch packs in.

Aug 28, 2009 | 02:27 PM

PeterM

Burning Brakes

Joined: Apr 2008

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From: NY NY

Break In Period.

I recently had a set of 390s installed in my 2008 M/Z51. Cartek did three heat cycles and then a fluid change. I also took it easy for 500 miles, and now all seems well.

Aug 29, 2009 | 05:51 AM

CPG1962

Thread Starter

Melting Slicks

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St. Jude Donor '09-'10

Thanks

I assumed 500 miles and as many heat cycles as possible. I have a very easy 20 miles drive to work so 2 weeks or less will do it. I have the Quaife ATB so no clutch packs.