Stainless Chambered exhaust

[BULLITT65]

If you are talking the rear most hangers I have a (extra) set of NOS hangers. I am not sure if this is what you referring to:

[69Z28]

The hangar kits are all over the place as to quality.  I actually called D&R and asked them for a "functional" Chambered Hangar reproduction and they had some odd loose Chambered Hangar pieces they sent me to complete my kit.  I still had some of the original hangar pieces under there so I just needed some bits to put it all together.  My car isn't worth buying NOS so I figured why worry about it?  I have pix of NOS hangars somewhere.

Mark, what was the quality of D & R's brackets? My car is not worthy of NOS either. I would be happy with just form and function.

[69Z28]

If you are talking the rear most hangers I have a (extra) set of NOS hangers. I am not sure if this is what you referring to:

Does the bracket require a nut and bolt or are the holes punched for a sheet metal type screw? I can't tell from your pic.

[BULLITT65]

i think it should be a hex sheet metal screw. I do not have an original (yet) ..

[69Z28-RS]

attached are a couple of pix showing one of the rear most hangers removed from the car, with the bolt installed, and a separate photo of the three fasteners:  2 which hold the hanger to the frame, and the 3rd which retains the hanger clamped to the pipe.

[69Z28]

Thanks Gary. Have to see if I have any of the clamp screws in my stash.

[69Z28-RS]

While I was under my car this morning, I had opportunity to get a photo of one of the rear exhaust pipe hangars installed (no exhaust there right now, but I got another view of the bolt which retains the exhaust pipe...

[Mark]

If your pipes have the aftermarket chromed tips with the heavy wall polished section, those hangers won't fit around them.  Chambered exhuast never had polished tips (polished tips started the same week the chambered system was discontinued), so they are sized for the stock thinwall tailipipe diameter.

[Stingr69]

The hangar kits are all over the place as to quality.  I actually called D&R and asked them for a "functional" Chambered Hangar reproduction and they had some odd loose Chambered Hangar pieces they sent me to complete my kit.  I still had some of the original hangar pieces under there so I just needed some bits to put it all together.  My car isn't worth buying NOS so I figured why worry about it?  I have pix of NOS hangars somewhere.

Mark, what was the quality of D & R's brackets? My car is not worthy of NOS either. I would be happy with just form and function.

It will vary even from the same vendor.  I called D&R and talked to them directly and discussed it.  They had some odd pieces that appeared to come from multiple designs/suppliers.  Never bothered me.  I used pieces from what they sent and what I stlll had under the car and it worked out fine. 

My rubbers were shot/gone but the GM metal brackets were reused. 

-Mark.

[69Z28]

If your pipes have the aftermarket chromed tips with the heavy wall polished section, those hangers won't fit around them.  Chambered exhuast never had polished tips (polished tips started the same week the chambered system was discontinued), so they are sized for the stock thinwall tailipipe diameter.

This is what I have.

[Stingr69]

That is the same D&R aluminized system that I have.

-Mark.

[Mark]

You might be good, my polished tailpipes have a longer heavy wall section then yours  They go all the way up to where it turns to go into the mufflers, and mine (I have one of the aftermarket chambered sets) don't fit into those rear hangers at all.  They had to be rebent to even come close to fitting around the pipe.

[69Z28]

All is good then, just need to get the hanger kit now. I was looking at some different forums and found one, don't remember which one, that had some exhaust installation tips. Make sure everything fits and then remove and then saw slots on either side of the muffler and or pipe connections and the clamps will tighten down better. Have you guys heard that being done? Kind of makes sense. The metal is pretty thick and I know Mark, Stingr69, said there was an issue there? As I stated before there were a ton of pics I found when I Googled images for Camaro exhausts and found plenty that have weld spots to hold the connections together.

[69Z28-RS]

GaryC:   

-Your pipes are aluminized, and thus are thicker, and likely have a larger O.D. than a stock tail pipe.   

-Re the slots in pipes at connections:   Yes, several exhaust pipes I've purchased aftermarket in the past have come with the outer pipe 'slotted' at the juncture to facilitate installation and perhaps the tightening down of the clamps.   You can actually break exhaust clamps by attempting to clamp some of those very thick pipes...

[69Z28]

Been chatting with D & R Classics via email over the past 2 days about their chambered exhaust hanger kit and lack of hardware. Their hanger kits were designed off the original GM hangers from what I was told. On the hardware this was the last email I got this morning.

"Yes, I had a hard time even finding specs on the screws. I found a generic replacement for the tail pipe clamp and tail pipe hanger to frame rail as I found the spec on those bolts. The front hanger and clamp I have to pull off a car to make sure I have original samples. Then I can send them out to be copied with the correct marking and all.

You are correct, AMK does not have anything for those part numbers.

We are working on it and hopefully will have hardware soon. Glad you asked about them. I am not sure how we have not had them all this time.

Thank you"

I had written down all the hardware part numbers that were found on pages 294 and 295, UPC L35/L34 B5 and B6 from the 69 AIM and emailed them to D & R. Maybe they can do a really complete kit.