so I'm ticked about exhaust...

[Ghinmi]

get the flowmaster kit.

Potential sig material for someone?

[addicted]

Potential sig material for someone?

[Ristow]

LOL!

hey....their DIY pipe kit is good. gotta give credit where due.

[mattparliament]

I'll figure something out and quit being such a whiny cry baby lol...

[mattparliament]

from Walker's website, the oldest they have is for a 79, are the 76 and 79 axle positioning the same and are the manifolds the same? Also, it's for the 360 and mine is the 401 but I think they are set up the same as well.

[addicted]

'79 and older are all the same. The change over year was '80. The passenger manifold is the same for the V8's from '71.5-'91. The drivers manifold and 'Y' pipe changed in '80 and remained the same until '91

[Carnuck]

from Walker's website, the oldest they have is for a 79, are the 76 and 79 axle positioning the same and are the manifolds the same? Also, it's for the 360 and mine is the 401 but I think they are set up the same as well.

If it shows the same pipe on the left for '79 and '80 then the catalog is wrong.

[FSJunkie]

Up until sometime in the seventies, all engines in Wagoneers used a 2" single exhaust system. Only one rubber hanger is used, and it is on the pailpipe. There is a metal clamp hanger behind the muffler and another metal clamp hanger at the transmission cross member. The stock 2" exhaust on even a 2V 360 is so restrictive, that downshifting the engine on a hill and reving over 3000 RPM causes the vehicle to slow down.

The 1979 page can be used as a basic plan for any 1971-1979 V8 exhaust system, but the pipe sizing will be wrong for some years.

I had a muffler shop use my original exhaust from the manifolds to the y-pipe collector, where the two pipes combine into a 2.5" single the rest of the way out with a single muffler and chrome resonator tip. I couldn't get it mandrel bent, but there are few twists and turns. The entire exhaust system has been isolated from the frame by new rubber hangers to prevent vibration.

I hear the cooling fan when the engine revs but not any exhaust noise, and I like it that way.

[babywag]

If it shows the same pipe on the left for '79 and '80 then the catalog is wrong.

What are you talking about?
Catalog page posted is for '79.
No reference to '80 anywhere on the page/in the catalog.

[mattparliament]

What are you talking about?
Catalog page posted is for '79.
No reference to '80 anywhere on the page/in the catalog.

Lol that's what I was thinking..,.

I bet we run into the same problem with the crossover and our lifts though...

[Ristow]

What are you talking about?
Catalog page posted is for '79.
No reference to '80 anywhere on the page/in the catalog.

hey.....gotta post something.

[addicted]

hey.....gotta post something.

[HerrKooled]

I run dual 3" exhaust true duals, but with no H or X pipe - with no mufflers, straight pipe. Sounded like crap IMO, to much rapping and crackling, then I advanced the timing on high octane gas, and as I put out more power the exhaust sounded much better.

Granted I fabbed something up quick due to me going diesel, but I am curious how it would sound through X pipe.

[Carnuck]

I forgot to add the '80-84 8cyl Cherokee, Wagoneer. Grand Wagoneer w/360 CID (5.9L) eng. diagram. It incorrectly lists donuts at the manifold (which went away in '78?)

From my '84 and earlier Napa exhaust catalog (June 2000)



The left manifold changed in 1980 but the diagrams show the same pipes.

From Walker's website.





You could "probably" run the later exhaust with the '80 and newer left manifold put on but the left pipe doesn't line up with the earlier one (just dealt with that with my J4000's 304 into my '83 Honcho).

[mattparliament]

The original reason I made this post was to find a factory bolt on setup that would work with a 4" lift, from reading on here it seems a replacement y-pipe will hit the front driveshaft. Curious if there is an easy way to remedy this problem... Thanks guys, good info!