Break in motive 3.73 gears?
07-21-2012, 06:36 AM
#1
Break in motive 3.73 gears? Ill be driving the car home 80 miles from the shop with new 3.73 motive gears. Mostly all highway. What is the way these need to be broken in? This will be a major PITA if I need to keep the mph low and stop a million times coming home to let them cool 
What do you guys say?
What do you guys say?
07-21-2012, 08:54 AM
#2
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Per the instructions, what you are planning on doing is exactly what they say not to do. At the very least stop once and let it cool. New gears get HOT.
07-21-2012, 10:18 AM
#3
![Ethan[ws6]'s Avatar](https://ls1tech.com/forums/customavatars/avatar139269_2.gif){kind=avatar}
Yeah, I would drive it ten miles or so stopping and going regularly throughout the trip. After the 10 miles, stop and get something to eat or something so the gear set can cool off a bit and do it again. Should be fine to do whatever after that. It really doesn't take much to break in new gears.
07-21-2012, 03:43 PM
#5
from what i researched when i did mine (and my friends 8.8), the initial heat cycle was the most important. Once you heat and cool down the first time, you can drive around without a problem, just no punishment. Honestly, I did some street launches after 200 miles and haven't had any issues, but i still wouldn't recommend it till after 500 just to be safe.
07-22-2012, 02:24 AM
#7
If you have to drive all highway, take every other on/off ramp so you will not have a constant load on the gears. This varies things a bit and I believe helps a lot. I even do this when I buy new cars! I also agree with one of the other posts. Drive about 10 minutes and get something to eat. Then I would drive another 30 minutes and repeat after an hour of cool down drive an hour and let it cool down and then you are home!
I believe in 3 heat cycles. I dont know if its right, but its always worked for me!
Joe
I believe in 3 heat cycles. I dont know if its right, but its always worked for me!
Joe
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07-22-2012, 08:17 AM
#8
The bulider and tuner (which I trust) put 2 cyles on before I picked up the car.
1 Took the the car for a test drive for 10 miles up to 50mph...then let car sit at his shop maybe 15 min.
2 Drove car 60miles on highway then car sat for 2-3 hrs.
3 Drove car home on highway 30 miles then car sat 3 hrs.
4 Then that night took car out, drove 15 miles highway/street and let car sit 15 min. I did this (#4) 3 times before bringing the car home to sit over night.
Anyone see anything wrong with this? lol I have 200miles on the gears so far.
1 Took the the car for a test drive for 10 miles up to 50mph...then let car sit at his shop maybe 15 min.
2 Drove car 60miles on highway then car sat for 2-3 hrs.
3 Drove car home on highway 30 miles then car sat 3 hrs.
4 Then that night took car out, drove 15 miles highway/street and let car sit 15 min. I did this (#4) 3 times before bringing the car home to sit over night.
Anyone see anything wrong with this? lol I have 200miles on the gears so far.
07-22-2012, 10:57 AM
#10
Yea? Cant wait!
I took it for a 15 mile ride today on way to gym, let it cool for 45 min. Then took for another ride 15 miles and now ill let it cool maybe a couple hrs.
I was thinking on putting another 100 miles on or so today then letting it cool, and then having fun. Think im all set though huh?
I took it for a 15 mile ride today on way to gym, let it cool for 45 min. Then took for another ride 15 miles and now ill let it cool maybe a couple hrs.
I was thinking on putting another 100 miles on or so today then letting it cool, and then having fun. Think im all set though huh?
07-24-2012, 06:43 AM
#15
If you are hearing whining it is most definitely due to improper set up. Most likely, pinion depth is off just a touch. As long as the whine isn't unbearable, it won't hurt anything. if it were me, I would take it back to them and ask them to fix it. Before they even try, don't let them feed you the same BS as everyone else.. "Sometimes different manufacturers gears whine." That would be false lol.
07-24-2012, 06:09 PM
#20
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When I put 373's in my 98, they screamed until I got around 1k miles on them and the noise pretty much went away. Probably wasn't the smart thing to do to keep driving it, never had any problems though.