Pressure blow-off on Diff case?

[Nate Notta]

Is it necessary to have a pressure blow-off on the differential case?
Our school used one two years ago when the diff was spinning in a stationary case, but we are spinning the sealed diff this year, and don't know how much to worry about the pressure build-up.
What are your thoughts?

Nate
UofWindsor 2004

[Nate Notta]

Is it necessary to have a pressure blow-off on the differential case?
Our school used one two years ago when the diff was spinning in a stationary case, but we are spinning the sealed diff this year, and don't know how much to worry about the pressure build-up.
What are your thoughts?

Nate
UofWindsor 2004

[RagingGrandpa]

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by NateNantais:
What are your thoughts?<HR></BLOCKQUOTE>
You'll force fluid or air out your seals for your intermediate shafts before it explodes from the pressure. No worries.

"...with powershifts and tiresmoke for all"

[Nate Notta]

Yeah I figured that's where it would leak but I thought you could avoid unplesent oil leaks out onto your stub shafts / brakes / the track, if you use a valve thingy...

[Sam Zimmerman]

We didn't run a vented diff last year and had small leaks around our stubshafts. This year we are using a valve thingy.

Sam Zimmerman
Vandals Racing (http://www.uidaho.edu/~racing)