4.10 gear
#1
08-04-2006 | 02:09 PM
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Joined: Jan 2006
Posts: 72
From: Florence S.C.
4.10 gear
Finally getting my 4.10's installed on monday. Can't wait. My installer says that once the gear is run to temp. and let to cool down there really isn't a break in period if it's insalled right. I'll be using synthetic gear oil and a conditioner. What do you guys think of a break in period? Thanks Mtarte
#3
08-04-2006 | 02:33 PM
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Joined: Sep 2004
Posts: 11,974
From: Orlando,Florida
Look on the manufactors website its for real.
http://www.precisiongear.com/pgtechbreak.htm
http://www.usgear.com/ring__pinion_installation.htm
When i first had 4.10's installed in my f150 i didnt break them in. just before the two year mark i had my bolts back out of the ring gear and destroy over 700bucks in gears and posi and bearings and my diff cover as well. I was told by Motive gears that by not breaking them in and just driving them i heated up the gears alot which allowed them loosen the bolts up from the day i drove it home from the shop. It was just a matter of time before the bolts backed out. And they had thread locker on them.
When i had the rear end redone for another 700bucks at 4wheelparts here in orlando i wasnt allowed into my truck without them showing me the break-in setup and signing a paper saying i saw this and will do it. Needless to say the rear end is still in that truck and over 3 years old now...
Do yourself a favor and break them in. Its free and easy to do.
Then again maybe you will get lucky, unlike me.
http://www.precisiongear.com/pgtechbreak.htm
http://www.usgear.com/ring__pinion_installation.htm
When i first had 4.10's installed in my f150 i didnt break them in. just before the two year mark i had my bolts back out of the ring gear and destroy over 700bucks in gears and posi and bearings and my diff cover as well. I was told by Motive gears that by not breaking them in and just driving them i heated up the gears alot which allowed them loosen the bolts up from the day i drove it home from the shop. It was just a matter of time before the bolts backed out. And they had thread locker on them.
When i had the rear end redone for another 700bucks at 4wheelparts here in orlando i wasnt allowed into my truck without them showing me the break-in setup and signing a paper saying i saw this and will do it. Needless to say the rear end is still in that truck and over 3 years old now...
Do yourself a favor and break them in. Its free and easy to do.
Then again maybe you will get lucky, unlike me.
#4
08-04-2006 | 06:01 PM
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Joined: Jan 2006
Posts: 72
From: Florence S.C.
Yeah, I'll probably be easy on it for a couple of hundred miles to be on the safe side UNLESS the time comes to not take it easy. You never know who's gonna pull up beside you and give you the LOOK.
#6
08-04-2006 | 09:48 PM
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Joined: May 2006
Posts: 51
From: Just outside our nations capital, on the VA side.
Would driving for 10 mins on the highway to my Dad's house count as break in? Cause I remember lighting up the tires as I left his house that day pretty well. It amazed me how short my first gear got in one afternoon. 
#12
08-06-2006 | 03:14 PM
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Joined: Jan 2006
Posts: 72
From: Florence S.C.
Originally Posted by CCM
Haha that's crazy, I'm getting mine installed on Monday too. Where are you getting yours done and how much are they charging you?
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