How To Run Exhaust with Lowered Truck
 

Ok experts, let's see some pictures of your 67-72 exhaust routing after lowering your truck. I have a 4" spring/shock drop from CPP in the rear with a 2" lowering block. Trailing arm suspension. It looks like I will need some ideas on routing over the axel or possibly out the side in front of the rear tire/wheel. Not much room left. Thanks for the help.

Re: How To Run Exhaust with Lowered Truck
 

My truck is dropped 4" in the rear and 3" spindles in the front. I did not have trouble running full length headers and dual pipes out the side exiting in front of the rear tires.

Re: How To Run Exhaust with Lowered Truck
 

morse muffler Burbank ca.
you have to mod the factory crossmember

Re: How To Run Exhaust with Lowered Truck
 

I'm far from an expert, but here are some pics anyway. 3" exhaust, approximately 5/7 drop. I got the bright idea of welding some bracing on my rear frame rails, so I had to run my exhaust in front of the rear tire. I still have to make the 90* to turn it out, but at least you can kinda see what's going on underneath the truck.

Re: How To Run Exhaust with Lowered Truck
 

I am in this dilemma also. Curious to see what you all have done.

Re: How To Run Exhaust with Lowered Truck
 

I tried to take a few pictures but they are to shiny, maybe I'll try later in the day. With modded cross members any good muffler shop can do a great job keeping the exhaust system tucked in the frame, nothing hanging below until the exit. As 70blackfish recommended, and I've heard good things about, Morse Muffler in Burbank. Speedway Muffler in Upland does an outstanding job (did mine). Good shops will mock up a system for your review prior to final bending & welding. Expect to pay $400-500 here in SoCal for 2 1/2 inch aluminized with a great set of mufflers.

Re: How To Run Exhaust with Lowered Truck
 

I too would like to see how they are routed over the rear end.

Re: How To Run Exhaust with Lowered Truck
 

Subscribed: I too Have LT Headers and Bagged, I Need to Switch to Mid Lenght or Shorties and Route the Pipes Tucked.

Re: How To Run Exhaust with Lowered Truck
 

A-body (chevelles, etc) long tube headers will work if you don't want to run shorties. I'm running Hedman Chevelle big block headers on mine. Lots of threads on lowered trucks with headers on this site (the search function is your friend).

Re: How To Run Exhaust with Lowered Truck
 

Here are a few pictures.

Re: How To Run Exhaust with Lowered Truck
 

Here's how i did mine..Headman shorty headers..2 1/2 pipe above cpp tranny crossmember and through stock trailing arm crossmember..Truck is bagged!

http://i94.photobucket.com/albums/l1...psa8af7abb.jpg

Re: How To Run Exhaust with Lowered Truck
 

Do you get a loud drown sound in the cab?

Re: How To Run Exhaust with Lowered Truck
 

driving through town yes..But highway at 60 mph and 2500 rpms it's not bad at all

Re: How To Run Exhaust with Lowered Truck
 

Worked for me, cheap Thrush (Flow-Master rip-offs) $29.00 each, tranny cross member $79.00

Important notes: Mines a GMC with rear leaf springs, I still turned my 4" tips out the side in front of rear tires leaving lots of room for 21 gallon tank, bigger shocks and rear anti-sway bar.

Re: How To Run Exhaust with Lowered Truck
 

Great question. I'm subscribing as I'm trying to decide what to do with mine when I get to that point. Mine currently dumps under the seat. Very loud and drone is awful around town!

Re: How To Run Exhaust with Lowered Truck
 

My truck is bagged and the exhaust guy I used was able to get mine out the back. Has stock bed floor with no clearance issues.

Re: How To Run Exhaust with Lowered Truck
 

Over transmission crossmember and through the trailing arm crosmember (your holes or buy ECE) is what you have to do to run exhaust right in a lowered (or any,IMO) truck. What headers you run and where it exits is up to you. It all works

Re: How To Run Exhaust with Lowered Truck
 

That looks nice! My only concern is that I have the gas tank in the back. I don't want to run the exhaust too close to the tank. It might work, I haven't checked yet. I'm just a little skeptical right now. I'm going to have holes cut in the TA cross member for the exhaust to come through. I'll figure out the rest later. These ideas help a lot though. Thanks for sharing.

Re: How To Run Exhaust with Lowered Truck
 

Ditch the three inch exhaust and run 2.5 inch tube.

Re: How To Run Exhaust with Lowered Truck
 

Nice truck. The exhaust looks really well done. Where are you running your gas tank?


I am right there with you. I am installing a LMC tank right now and need to figure out where to run the exhaust now. It seems like a lot of newer factory cars run there exhaust right next to the gas tank. I am thinking about running my exhaust like 67ctener. It should be away from the tank enough to not have any heating issues.

Re: How To Run Exhaust with Lowered Truck
 

My tank is in the cab so no issue there. I'd image with a heat shield you would have no worries running it next to the tank

Re: How To Run Exhaust with Lowered Truck
 

Thanks for all the responses and pictures. They are a great help. Looks like I will need to make my own holes through the trailing arm crossmember, then run the pipes up and over the axel as close to the bed as possible.

Re: How To Run Exhaust with Lowered Truck
 

http://67-72chevytrucks.com/vboard/s...d.php?t=239896

Frizzlefry's tahoe build - he does the exhaust around page 30 or so. A lot of Ideas and awesome craftsmanship in that thread

Re: How To Run Exhaust with Lowered Truck
 

2.5" on mine

Re: How To Run Exhaust with Lowered Truck
 

On my sixty seven,we ran the pipes under the frame right behind the front control arms in the kick u.Then with them outside the framethey ran straight back with the mufflers in them.Then back in at the rear kick up and along the frame rails right straight out the back.It worked well and idin't hit anywhere but the truck was stock height.
Sorry,no pics the truck is 1200 miles away.