Correct 73 Exhaust configuration

[Donald M.]

I am trying to get the exhaust back under my 73 and get them aligned properly and "tucked up" under the car properly. I referenced the 73 Judging Manual, the 73 GM Service Manual and the 73 Assembly Manual. There is some discrepancy in proper configuration depending on where you look. The 73 Judging Manual and the 73 GM Service Manual both reference the muffler being attached to the rear exhaust bracket by a tab on the rear of the muffler with a muffler clamp serving to hold the tip in place. The 73 Assembly Manual shows the clamp being used to attached the muffler to the rear exhaust bracket ( a different bracket than previously mentioned) and the same clamp also holds the exhaust tip in place. (My car was configured this way and when I ordered new rear brackets I received the same style bracket that was on my car. So Which is correct? Thanks in advance for your input. Don Mason

[Joe L.]

Re: Correct 73 Exhaust configuration

I am trying to get the exhaust back under my 73 and get them aligned properly and "tucked up" under the car properly. I referenced the 73 Judging Manual, the 73 GM Service Manual and the 73 Assembly Manual. There is some discrepancy in proper configuration depending on where you look. The 73 Judging Manual and the 73 GM Service Manual both reference the muffler being attached to the rear exhaust bracket by a tab on the rear of the muffler with a muffler clamp serving to hold the tip in place. The 73 Assembly Manual shows the clamp being used to attached the muffler to the rear exhaust bracket ( a different bracket than previously mentioned) and the same clamp also holds the exhaust tip in place. (My car was configured this way and when I ordered new rear brackets I received the same style bracket that was on my car. So Which is correct? Thanks in advance for your input. Don Mason

Don------


The 1973 exhaust extensions ("tips") and the hanger clamps were unique to that year. The extensions were similar to, but not the same as, the 70-72 extensions. The hanger clamps were completely different. As far as I know, the configuration and assembly as shown in the 1973 AIM is correct.

[Paul O.]

Re: Correct 73 Exhaust configuration

As Joe stated a 1 year design the hanger and clamp were to hold the muffler outlet pipe and the exhaust tip. Only 1 clamp per side the typical configuration is as you found on your car.

[Rich C.]

Re: Correct 73 Exhaust configuration

There shouldn't be any "tab" on the mufflers.

1973 LS-4 454 coupe owned 24 years
1996 LT-4 Collector coupe owned 1 year
Smu ttynose 'finestkind' IPA- now on tap!

[Joe L.]

Re: Correct 73 Exhaust configuration

There shouldn't be any "tab" on the mufflers.

1973 LS-4 454 coupe owned 24 years
1996 LT-4 Collector coupe owned 1 year
Smu ttynose 'finestkind' IPA- now on tap!

Rich------


Yes, and these mufflers were also a one-year-only item.

[Donald M.]

Re: Correct 73 Exhaust configuration

Thanks Guys for the information. I guess the judging manual needs to be updated on this item. Don.

[Rich C.]

Re: Correct 73 Exhaust configuration

Thanks Guys for the information. I guess the judging manual needs to be updated on this item. Don.

Don,

That sure is true! Unfortunately the '73-74 is only on the second edition, it hasn't been updated in a looong time.


1973 LS-4 454 coupe owned 24 years
1996 LT-4 Collector coupe owned 1 year
Smu ttynose 'finestkind' IPA- now on tap!