OEM Exhaust parts

[flatford39]

Need to change out the exhaust system on my 1980 K10 with a 350 engine. This is a full size pick up. It now has replacement dual exhaust that need to be changed out. I want to go back to the factory single exhaust using the Y pipe exhaust. It would appear from the brackets that the tailpipe exited out the passenger side just behind the rear tire. My questions are did this vehicle come with a single outlet muffler or a dual outlet muffler?? When I look at Walkers web site and others they show it both ways and they also show it exiting on the drivers side which I am sure is wrong.

Where is a good place to go (online possibly) for OEM exhaust parts???

Thanks in advance for any help.

[bake74]

     In our tech section, the GM Heritage link is included, on page 8 for K10-20's is listed "Exhausted System=Single;Aluminized".
     Starting on page 23 The exterior pictures start showing the exit for the exhaust behind the drivers tire, but I could not find anything written that states all were single exit after drivers side.
     GM Wholesale Direct sells OEM part and aftermarket parts.

[timthescarrd]

My 83 still has factory exhaust (for the moment), it's y-pipe into cat, single pipe on driver's side, dual outlet muffler

[flatford39]

Bake & Tim..thankyou for your direction. I appreciate it. I have to crawl under the truck again tomorrow but I am sure I have a factory hanger on the passenger side that supports the tailpipe after the muffler and in front of the rear axle. There is a universal hanger on the driver side in the same location that looks like it was added. I need to crawl under there again and verify.

Again thank you for taking the time to respond.

[Captkaos]

Walker and Hooker are the closest bet.  Most later 1981+ trucks were single exit, some of the earlier ones with a Cat (1975 and later ) were Y into single and split to 2 rear exit.  Only the pre 75 were actually offered with Dual if I remember correctly.

[audrima]

on my 78 C25 hd which still has factory exhaust, is a y pipe straight to single muffler on the drivers side.


Mariah