Hole in rear axle

nistitan · Apr 5th, 2007, 09:57 PM

Hello , I am a bit embarresed to ask this but
..... after changing my rear diff fluid ... i noticed a hole in the rear axle
....... pretend you are under the truck looking at the rear diff plate
...... on both sides of it are 2 indentions .... 1 up top .... 1 down below .... on both sides of the rear diff cover in the axle ....... the one indent up top on the passengers side has a small hole in the indention , it goes into the axle itself ........ what is this? ........ i am thinking of plugging it up ...... I took a pic to help show where it is ..... thank you

titanwill · Apr 7th, 2007, 08:45 AM

yup we have had problems with the diffs. Dana built them and did not weld the tubs into the pumpkin good enough cause the tubs to twist. Mine did the same thing, and I am a Nissan tech. boy did I get shit from the chevy guys.

nistitan · Apr 7th, 2007, 11:27 AM

HI , if the "tub" is the piece in the indent ...... it is there ....... but there is a hole about the size of a piece of lead from a pencil in the middle of it
...... so i should plug it up?
it seemed to me that water could get in this way ....... but i didnt want to plug it up because i didnt know if it was some "breather" hole or something