New gear break in
1/19/19, 05:50 PM
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New gear break in
is it wise to dyno tune after installing new gears. I understand that the car needs to be tuned to correct the speedo, but is dyno the way to go if there is a break in period? When I am ready to get the gears in the near future, Im also installing a new 1 piece driveshaft, lsd, axles, shorties, h pipe, cat back, shifter, and throttle body, so a tune will be necessary, but to push the new ring and pinion that soon seems like danger? Enlighten me.
1/20/19, 04:26 AM
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legacy Tms Member MEMORIAL Rest In Peace 10/06/2021
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If the gears are installed 'right', no break in is needed. When I had my dealer install my 3.73's on my 2011 v6, I did a 500 mile break in 'only' for 'my' peace of mind. Didn't have to but did it anyway 
The Lsd your talking about if I understand what your asking, we already have one. .
The Lsd your talking about if I understand what your asking, we already have one. .
Last edited by David Young; 1/20/19 at 04:32 AM.
1/20/19, 05:05 AM
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Thank you for your reply. I was concerned about pushing the new ring and pinion gears so hard for dyno runs on the first day of installation, however, I never heard of or read of anyone having trouble, so I guess it should be fine. As far as the lsd, I was planning to have the Ford Performance Traction-LOK Installed. I figured since its all opened up, why not beef thing up a little. Im closing in in 70000 miles, so, why not.
1/21/19, 12:19 PM
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Thank you for your reply. I was concerned about pushing the new ring and pinion gears so hard for dyno runs on the first day of installation, however, I never heard of or read of anyone having trouble, so I guess it should be fine. As far as the lsd, I was planning to have the Ford Performance Traction-LOK Installed. I figured since its all opened up, why not beef thing up a little. Im closing in in 70000 miles, so, why not.
1/21/19, 01:01 PM
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My installer told me not to worry too much about break-in for my 3.73 gears; "just do a couple of heat cycles and you should be good." A "heat cycle" is one cycle of getting them warm then cooling off. I drove to the store about 15 minutes away, let them cool while I shopped, then drove home . . . he said that should be fine. But I think he might have been oversimplifying; if I was going to do it again, I would do the same, but make sure I drove at varying speeds during the warm-ups, and drive at least 30 minutes so they get good and warm, and let cool for at least a few hours.
I did a dyno run pretty quick after the trip to the store and back, and I always wondered if that had anything to do with the gear whine that I have now. It is not super bad, but definitely noticeable. The 3.73's are known for whining (sometimes) so I don't know if it really made any difference. If I was going it over, I would give them a better "break in" as described above; and probably 4 good heat cycle, not just two; just to make myself feel better.
I did a dyno run pretty quick after the trip to the store and back, and I always wondered if that had anything to do with the gear whine that I have now. It is not super bad, but definitely noticeable. The 3.73's are known for whining (sometimes) so I don't know if it really made any difference. If I was going it over, I would give them a better "break in" as described above; and probably 4 good heat cycle, not just two; just to make myself feel better.
1/22/19, 05:40 AM
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Joeywhat:
according to American muscle the v6 mustangs have an open differential: https://www.americanmuscle.com/differential-types.html
according to American muscle the v6 mustangs have an open differential: https://www.americanmuscle.com/differential-types.html
1/22/19, 05:41 AM
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Joeywhat:
according to American muscle the v6 mustangs have an open differential: https://www.americanmuscle.com/differential-types.html
according to American muscle the v6 mustangs have an open differential: https://www.americanmuscle.com/differential-types.html
1/23/19, 04:30 AM
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legacy Tms Member MEMORIAL Rest In Peace 10/06/2021
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Our 2011-2014 v6 Mustangs have the same 8.8 rear end's used in the v8 GT Mustangs We 'do not' have an opened differential …………….
.
We 'do not' have an opened differential ……………..
Last edited by David Young; 1/23/19 at 04:32 AM.
1/23/19, 10:18 AM
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