Gears & Axles Driveshafts | Rearends | Differentials | Gears | 12 Bolt | 9 Inch | Dana

gear break in

Thread Tools
 
Search this Thread
 
Old 04-20-2007, 10:08 PM
  #1  
Teching In
Thread Starter
iTrader: (1)
 
antonzracin's Avatar
 
Join Date: Feb 2007
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
Default gear break in

Just got new 3.73s to go with my auto 10 bolt car, they are made by motive....it says break in period required, but not how long? Whats the best way to break them in, and how long, before I begin once a week bracket racing?
Old 04-21-2007, 05:06 AM
  #2  
Teching In
Thread Starter
iTrader: (1)
 
antonzracin's Avatar
 
Join Date: Feb 2007
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
Default

ttt any 1?
Old 04-21-2007, 06:17 AM
  #3  
TECH Senior Member
iTrader: (8)
 
staringback05's Avatar
 
Join Date: Apr 2006
Posts: 6,695
Likes: 0
Received 2 Likes on 2 Posts
Default

just did the exact same thing my man.....a good break in...also gm recommended...

250 miles in increments of 50 miles at a time...let them heat treat...run it for 50 miles then let it cool down and so on until 250....then drain fluid and....for good measure....do it once again and your good to go
Old 04-21-2007, 02:15 PM
  #4  
Teching In
Thread Starter
iTrader: (1)
 
antonzracin's Avatar
 
Join Date: Feb 2007
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
Default gears

appreciated
Old 04-22-2007, 02:24 AM
  #5  
12 Second Club
iTrader: (4)
 
Avengeance's Avatar
 
Join Date: Aug 2003
Location: NorCal
Posts: 1,618
Likes: 0
Received 0 Likes on 0 Posts

Default

Same procedure for a 9"?

I just intstalled my 9" and for the life of me I cant get ahold of Scott @ DLS to get a proper break in procedure... nor can I get the damn search function to work.
Old 04-22-2007, 11:25 AM
  #6  
11 Second Club
iTrader: (25)
 
DuronClocker's Avatar
 
Join Date: Nov 2005
Location: Clearwater, FL
Posts: 1,241
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by Avengeance
Same procedure for a 9"?

I just intstalled my 9" and for the life of me I cant get ahold of Scott @ DLS to get a proper break in procedure... nor can I get the damn search function to work.
Here's what I believe he told me. Do NOT use synthetic for the break-in.

First drive: Only a couple miles, no launching, no speed/power shifting, nothing over 65mph. Let cool for a couple hours.

Second drive: Make it more like 20ish miles, again no launching/speed/power shifting, and still nothing over 65mph. Let cool over night.

Next 250 miles: no hard launching or shifting hard still, but you can take it on the highway. After this its your choice to drain the fluid or not (I would recommend to do it though he didn't seem to imply it was terribly important).

After this you should be good to go and beat the hell out of it.
Old 04-22-2007, 12:40 PM
  #7  
12 Second Club
iTrader: (4)
 
Avengeance's Avatar
 
Join Date: Aug 2003
Location: NorCal
Posts: 1,618
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by DuronClocker
Here's what I believe he told me. Do NOT use synthetic for the break-in.

First drive: Only a couple miles, no launching, no speed/power shifting, nothing over 65mph. Let cool for a couple hours.

Second drive: Make it more like 20ish miles, again no launching/speed/power shifting, and still nothing over 65mph. Let cool over night.

Next 250 miles: no hard launching or shifting hard still, but you can take it on the highway. After this its your choice to drain the fluid or not (I would recommend to do it though he didn't seem to imply it was terribly important).

After this you should be good to go and beat the hell out of it.
Thank you very much!
Old 04-22-2007, 01:54 PM
  #8  
On The Tree
 
96mikez28's Avatar
 
Join Date: Jul 2006
Location: Keego Harbor, Michigan
Posts: 177
Likes: 0
Received 0 Likes on 0 Posts
Default

did any of your gears whine in the 9"?
Old 04-23-2007, 10:42 PM
  #9  
11 Second Club
iTrader: (25)
 
DuronClocker's Avatar
 
Join Date: Nov 2005
Location: Clearwater, FL
Posts: 1,241
Likes: 0
Received 1 Like on 1 Post

Default

I've done the first couple drives in mine, and it seems to make a VERY VERY slight whine around 30-40mph. Barely audible, and I'm very sensitive to gear noise. With the radio on at any level you can't hear it. No noise on the highway, only took it slightly over 60 for a few seconds to see if there was any noise up there. I'll find out more tomorrow when I start driving it a bit more since it should be safe to take on the highway.




All times are GMT -5. The time now is 04:29 PM.