Chunk ?

[SRT17]

I have a chunk for a 9" rear end. It doesn't have a fill hole casted in it. My housing doesn't have one in it. Can I just drill and tap a plug in it. Or will it weaken it? I have never had one without one... Thanks...

[twisterf5]

I have a chunk for a 9" rear end. It doesn't have a fill hole casted in it. My housing doesn't have one in it. Can I just drill and tap a plug in it. Or will it weaken it? I have never had one without one... Thanks...

we always welded one in the back at a gallon level. just at axle center line.

[Confused?]

I always weld half a pipe coupling to it and use a pipe plug. That way it stays out of the gear area and has more threads to tighten.

[SRT17]

So it would be better to put it in the housing?

[Confused?]

Yes. Steel is easier to work with than iron.

[r3tracing]

Once you put it in housing then it will never matter what chunk you have or buy. the fill plug is always there

[SRT17]

So keep it on center line or below?

[Confused?]

I put it higher to ease the filling.

[Lizardracing]

You might think about putting in on the left side axle tube next to the housing. That's where I added mine because it's way to get a funnel to fill and easy to get the plug in tight.