Topic: break in period on ring and pinion gears?

[motorider228]

Well I just ordered a posi and some lower gears for my hemi ram, my question is, do the gears need to be broken in over a certain amount of miles?  I'm going to the drag strip on feb 9th to run my truck in some grudge matches, should they be ok?  I came here because you guys all have experience with gears.  Any infor would be great.

[DTB]

Well I just ordered a posi and some lower gears for my hemi ram, my question is, do the gears need to be broken in over a certain amount of miles?  I'm going to the drag strip on feb 9th to run my truck in some grudge matches, should they be ok?  I came here because you guys all have experience with gears.  Any infor would be great.

follow the gear manufacturers recommendations. basically u are driving for short distances and letting the gears cool repeatedly for a certain number of miles. Make sure u change the fluid after break in! <<<<IMPORTANT

[BLACKDOG]

When I got my gears done, the installer told me to not go over 55mph for 500 miles.  for the reason DTB  mentioned above

[motorider228 [OP]]

That will be really hard as i drive on the highway every day. What if i pull over every few exits and let it cool down?

[KYOTA]

they need to completely cool.  IIRC when I broke mine in I did like 15 minutes cool (couple hours) another 15, cool, then put 500 miles on them then change out the gear oil.

[motorider228 [OP]]

What's IIRC mean?  So you're saying you basically drove normal but let them totally cool down after a few hours of driving?  So if I drive 65 on the freeway and only make 2 or 3 passes on the drag strip letting them cool down for 15 minutes every hour or so I should be good? 

[KYOTA]

no I meant drive for 15 minutes or so then let them cool, then another 15 min then cool then drive mellow on them for 500 miles then change the gear lube.

[BoG-ToY]

sorry, but I had to add this to make it sound cool......drive for 15 minutes, stop for 3 hours+, drive for 15 minutes, stop for 3hours+

[Rockcrawlintoy]

when i did my gears had it up on jack stands did 10 minutes in forward and 10 in reverse and let it cool. the next day i drove 10 miles anmd let it cool. then i didnt drive over 55 for 500  miles then changed the fluid.

DRew

[abnormaltoy]

Well here's my take on this question. What do you do when you buy a new vehicle? Do you drive 15 mins then cool for 3 hours or do you drive it normally as soon as you sign the papers? Unless they do something different to the gears they put in production line vehicles, I don't see the difference. Perhaps I'm wrong.
I do agree, however, with changing the oil (new vehicle too) after a couple of hundred miles.