Thread: 1940 Ford Pickup

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the X pipe ain't your problem---walk around the truck 10 times (5 in each direction, switching directions every couple circles----------


Look at the exhausrt system from the back forward instead of front to back-------


the most fab problems for exhaust systems are at the rear---look at any current vehicle


Its a truck, how about side exit forward of rear wheel ?


How about round muffler with angle to the inlet/outlet?( gets rid of problems with large flat ovals and straight I/o)


How about moving the cross piece for the shock mounts forward of the rear end (like they used to be before coil overs)


Once again I'll mention that the exhaust systems from the pre 2005 mustang will go up over the axle and then out rearward under the frame rail member---take a look under the mustang (not Cobra with irs)


You can get oval mufflers with inlet/outlet both on same end which is nice to do a side exit in front of rear tire


But in any case, change where your standing looking at the vehicle and reverse your thinking-----you know what you got for the exhaust manifold, now decide what you want for an exit tip---round? oval? polished?


Damn its cold here and on the way down

Maybe have a friend check it out and get their imput. In the end whatever works is fine. But sometimes everyone chimes in when it will work for the better in the end to do a few mods we don't want to hassle with. I find in these cases that I tend to stew over it for a while, and then take the advice when I'm in a better mind set, and less of a hurry!

Originally Posted by Navy7797

This is getting too stressful, right now I wish I never heard of a #am X-pipe.

Just remember the only person you need to satisfy is you. All of the free advice you get here is just for consideration as you stew over how you want to do it. For me, I've never liked side exhaust in front of the wheel so much, other than one or two that I saw where they punched holes in the frame of a highboy. I like them coming straight out the back, equally spaced off the center, but lots of other things work, too. Please yourself.

for anyone wanting to do a rear exit wide system that won't be under the fuel tank ( pipes work out to be below the frame rails) check out these two Magnaflow kits---#15673 for 2 1/2 tube and if its big block maybe #16394 for 3 inch tube

Jerry, Stovens & Roger Thanks for the input. I did take a long look at it today and here's where I'm at .
Ok Here's today's New Look at the pipe problem. Note that the pipe is just hanging on wires at this point so it's not centered perfectly, also the wood spacer between the pipe and frame is 3/4 inch. In order to move the X pipe forward I have to rebuild the tranny cross member into a gull wing shape and move the frame mount to the top of the rail, thous gaining clearance for the front pipe coming out of the X pipe joint. A few trips to the muffler shop will get the bends done if I don't screw it up. Moving the X pipe forward doesn't give me any more ground clearance but will allow the pipe's to bend up through the drive shaft loop. Thanks again for the inputs.

Make the new trans mount, you won't regret the extra effort.

Originally Posted by firebird77clone

Make the new trans mount, you won't regret the extra effort.

I plan on it. thanks

Another thing to consider is what's required to drop the tranny. It may be that you have to drop the exhaust in order to have enough clearance - hard to tell from photos. I'm not saying anything is wrong with what you're doing, just pointing out that at some point down the road you might have a need to drop it, and having to chop the exhaust into pieces and then weld it back together would be one of those added frustrations that make the problem grow. Better to think about it while it's going together.

Also, from the earlier pictures I assumed that your X pipe was all one piece, not a short X with extensions. Messing with the extensions one at a time makes it a lot easier, IMO. You can set the X where you want it, and form individual pipes to fit.

Just a couple thoughts... I had said earlier to see if you could get the X under the u-joint as it will allow clearance if you have to remove the trans.. I was also about to say (after reading your frustrations) that it's easy at this point to compromise and do an "H" in front of the trans.. but it looks like your down the path and need to continue.

No matter what tho'... stand back and continue to tell yourself that we all think this is fun!

Originally Posted by 34_40

No matter what tho'... stand back and continue to tell yourself that we all think this is fun!

Exactly!!!! And to prove it to yourself, pull out a hammer and give your thumb a good whack just for grins!!

Always fun donating blood to the hotrod gods!

heck some of you guys know how to make us smile at any issues we may find..... now where did I lay that hammer down....

Take your time on the exhaust as the extra thought can make any up coming jobs that may need work a lot easier when a section of pipe can be unbolted and removed quickly and painlessly .

I didn't see headers on the engine, thats the one 'fixed' point in the whole system and that is where you need to start from. The 'x' pipe will have to be modified and that is why the in/out tubing is generous but you can't do anything until headers on are the engine and you've cut the 'x' pipe to mate to the headers. Once those are bolted together you are off to the races, get a couple mandril bends to weld into the pipes going over the axle and it'll be 'magazine' ready.

ojh: You had better put your glasses on. Thanks for your thought's though.

Originally Posted by ojh

I didn't see headers on the engine, thats the one 'fixed' point in the whole system and that is where you need to start from. The 'x' pipe will have to be modified and that is why the in/out tubing is generous but you can't do anything until headers on are the engine and you've cut the 'x' pipe to mate to the headers. Once those are bolted together you are off to the races, get a couple mandril bends to weld into the pipes going over the axle and it'll be 'magazine' ready.

Today I built a new trans cross member. It still has to be cleaned up and maybe a gusset added. The old mounts on the frame need to be cut off and the area cleaned up. I only gained about 3/4 - 1 inch in height but was able to move the x pipe forward 6+ inches. Tranny will still come out without dropping the pipes. See any problems with this mount ?
Thanks for the in puts.

gordy