1950 Willys Truck re-rebuild by 50wllystrk

3 minute(s) of a 620 minute read

Here's the time I get a little nervous, it's commitment time, time to do the full welds. I need the lead pipes to be fully welded so I can move onto the rest of the system after the "x".

Once I've checked and rechecked the fit, I welded everything together.

Just for an idea of what a monster I'm getting into, here's a picture of one side becoming a split. One outlet will have a muffler directly off the split. The other outlet will have a flange welded to it. Once the flange is welded in place, the cut out valve will be sandwiched between it and another flange and a pipe that will carry the open exhaust to the side outlets.

Don't worry, I'll have more pictures later showing more of the system.

4-15-2012

If anyone has noticed, the exhaust system doesn't have any humps where the pipes have to go over a crossmember.

Where most build the crossmember, then build the exhaust around or over it, I built the exhaust, then built the crossmember over or around the exhaust.

We've already been down the "crossmember build" road a couple months ago so I'll keep it short on this one.

Starting with the front and back sections after I had the torchmate do the cutting.

The tricky part here is getting the two lined up near perfect. If the two are not lined up properly, the whole thing is gonna be a twisted mess.

The square tubing between the plates is 1 1/2", I wanted the crossmember to be 1 3/4" wide when done. With the 1 1/2" spacer and the 1/8" side plates, I got my 1 3/4" width.

Back to using the press again, I slowly shaped the top and bottom plates to match the contour of the side plates.

In this picture the crossmember is upside down. Flipped over, you can imagine how the crossmember touches the frame on both outer ends, then raises up over the exhaust, then drops between the pipes to support the transmission in the center.