Got my 4.10's yesterday
4/23/12, 07:00 AM
#21
One of these days I'm going to go tho the barber and he's going to tell me that after my haircut I'll need to break it in for the first week, lather, rinse, but don't repeat.
4/23/12, 07:43 AM
#22
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I think the break in period for gears, is so it gets a nice pattern worn in and you can listen for noises, just jumping in and romping on it is pretty dumb, I would never advise it nor would a respected mechanic, most mustang "backyard mechanics" think as long a you get ford gears you can reuse the shims and not measure anything also
I waited like 300 miles or so before I launched it or shifted really hard, you can WOT just don't slam gears or launch it really hard
I waited like 300 miles or so before I launched it or shifted really hard, you can WOT just don't slam gears or launch it really hard
4/23/12, 08:13 AM
#24
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Originally Posted by BradGT
I think the break in period for gears, is so it gets a nice pattern worn in and you can listen for noises, just jumping in and romping on it is pretty dumb, I would never advise it nor would a respected mechanic, most mustang "backyard mechanics" think as long a you get ford gears you can reuse the shims and not measure anything also
I waited like 300 miles or so before I launched it or shifted really hard, you can WOT just don't slam gears or launch it really hard
I waited like 300 miles or so before I launched it or shifted really hard, you can WOT just don't slam gears or launch it really hard
Still think gear break in is unnecessary... I've done several gear swaps. I never "break in" them.
I've done gears on a 11 second car that right after the gear swap he put the car on a trailer and headed to the track and launched the **** out of it... guess what. That was a year ago. He has made no telling how many drag passes with no problems with the rear diff.
Last edited by texastboneking; 4/23/12 at 08:15 AM.
4/23/12, 08:22 AM
#25
Originally Posted by BradGT
I think the break in period for gears, is so it gets a nice pattern worn in and you can listen for noises, just jumping in and romping on it is pretty dumb, I would never advise it nor would a respected mechanic, most mustang "backyard mechanics" think as long a you get ford gears you can reuse the shims and not measure anything also
I waited like 300 miles or so before I launched it or shifted really hard, you can WOT just don't slam gears or launch it really hard
I waited like 300 miles or so before I launched it or shifted really hard, you can WOT just don't slam gears or launch it really hard
4/23/12, 09:34 AM
#27
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Ford mechanic doesn't mean good mechanic FYI, for ever good one there is probably 1,000 bad ones.
I don't know how anyone could argue against taking it easy for a few hundred miles to make sure everything's ok and let everything settle
I don't know how anyone could argue against taking it easy for a few hundred miles to make sure everything's ok and let everything settle
4/23/12, 09:42 AM
#28
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Originally Posted by BradGT
Anyone can be a mechanic without any schooling, are you ASE certified? And what would some one gain by telling you to take it easy for a few hundred miles?
I'm Ford certified (which is a REAL certification)
And the mechanic would tell you to take it easy for a few reasons.
1) they have always used break in procedures because that's what daddy did
2) they want piece of mind knowing you wont be back that day with screwed up gears because the got the lash wrong.
4/23/12, 09:44 AM
#29
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Originally Posted by BradGT
Ford mechanic doesn't mean good mechanic FYI, for ever good one there is probably 1,000 bad ones.
I don't know how anyone could argue against taking it easy for a few hundred miles to make sure everything's ok and let everything settle
I don't know how anyone could argue against taking it easy for a few hundred miles to make sure everything's ok and let everything settle
4/23/12, 09:54 AM
#30
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Haha I'm sure no car has come back to a ford dealer with the same problem or misdiagnose, anyways it's good to let it go thru it's heat cycle, from what I've been told when gears are first install the finish generates a lot of heat until a pattern is worn in but I could be wrong, that's just what my dad and mechanic said
Also none of my gear installs ever whined or made any noise
Also none of my gear installs ever whined or made any noise
4/23/12, 09:57 AM
#31
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Originally Posted by BradGT
Haha I'm sure no car has come back to a ford dealer with the same problem or misdiagnose, anyways it's good to let it go thru it's heat cycle, from what I've been told when gears are first install the finish generates a lot of heat until a pattern is worn in but I could be wrong, that's just what my dad and mechanic said
Also none of my gear installs ever whined or made any noise
Also none of my gear installs ever whined or made any noise
None of my gears have whined either and I drive the **** out of them
I better find an ASE tech to clear things up for me
4/23/12, 01:17 PM
#34
Having my gears professionally done by a trusted mechanic. I'll let you guys know what he recommends for the sake of discussion. I'm most likely with going with texastboneking's advice though - training & experience on the specific application trumps generalized advice.
4/23/12, 01:46 PM
#35
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Originally Posted by BradGT
What so bad about ASE cert? ain't that the industry standard??
As a welder I'm ASME and AWS cert'ed and work in and ISO 9008 shop
As a welder I'm ASME and AWS cert'ed and work in and ISO 9008 shop
Ford certifications take several tests as well as hands on with vehicles to be obtained.
Big difference between the two
4/23/12, 01:49 PM
#36
Originally Posted by texastboneking
Because any Joe blow off the street can study a book and take a test and become ASE certified without ever touching a wrench.
Ford certifications take several tests as well as hands on with vehicles to be obtained.
Big difference between the two
ffended: lol
4/23/12, 05:09 PM
#38
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Well, I am generally a person with bad luck when it comes to things that I enjoy. I opted to follow my mechanics advice and take it easy for the first bit. I was all ready to give them a real test today, but its effing snowing out!!!!
Anyways, is there a market for used 3.55's? I have a posting over at the Thunderbird SuperCoupe club of America website. Is there a market for them on this board?
Anyways, is there a market for used 3.55's? I have a posting over at the Thunderbird SuperCoupe club of America website. Is there a market for them on this board?
4/25/12, 09:33 AM
#40
I just got my mustang back from the mechanic with the gears installed and he took his time and did it right. He has done a lot of rear ends and has never had one whine. He's tested it out with no whine, and I've confirmed it as well. I asked him about break in, and he said that I don't need to do anything different - the gears will settle in but it is installed so that will be within the tolerances. Also, he's ASE Master certified.