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'99 - '06 GM Truck Modifications
Engine & Performance
DIY Exhaust Thread-Dynomax Bullet
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<blockquote data-quote="01ssreda4" data-source="post: 5480" data-attributes="member: 477"><p>Just beyond that are the disconnects. Spray them with wd40 while you are poking around under there.</p><p>One is a ball and socket type connection with a flange on both sides. Two nuts disonnects this. The</p><p>other is a slip fit that has a clamp on it. One nut for this one and whouldn't ya know they faced</p><p>it up and put a tack weld on it. A 15mm ratcheting wrench works well here.</p><p></p><p><a href="http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105740_628_zps95cc9f9f.jpg.html" target="_blank"><img src="http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105740_628_zps95cc9f9f.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>Just behind the disconnects there is a crossmember, here is a shot from the rear. There is a length</p><p>of straight pipe before we get to the actual muffler. You can see the stock clamp disconnect on</p><p>the very left.</p><p></p><p><a href="http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105722_999_zps88fd4107.jpg.html" target="_blank"><img src="http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105722_999_zps88fd4107.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>Moving right along, there is a hanger just in front of the muffler. You'll need to remember this</p><p>as it becomes a very good reference point and a hanger we want to keep. Here she is:</p><p></p><p><a href="http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105711_791_zps41be1665.jpg.html" target="_blank"><img src="http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105711_791_zps41be1665.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>Ok, here is the bathtub sized muffler. No wonder this 6.0 is so quiet. Notice the hanger behind the muffler,</p><p>we'll be using that in a bit also.</p><p><a href="http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105655_907_zps1d177b0b.jpg.html" target="_blank"><img src="http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105655_907_zps1d177b0b.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>A shot of the back of the muffler, another shot of that rear hanger, and your first glimpse of the</p><p>stock merge. We will not be working past this point. This is the rear of the system for our discussion.</p><p>What's left is an over the axle pipe, then tailpipe and depending on model maybe you got a nice</p><p>pretty stainless tip (Yukon Denali's did).</p><p></p><p><a href="http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105626_233_zps0f0704f1.jpg.html" target="_blank"><img src="http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105626_233_zps0f0704f1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>-----------------------------------</p></blockquote><p></p>
[QUOTE="01ssreda4, post: 5480, member: 477"] Just beyond that are the disconnects. Spray them with wd40 while you are poking around under there. One is a ball and socket type connection with a flange on both sides. Two nuts disonnects this. The other is a slip fit that has a clamp on it. One nut for this one and whouldn't ya know they faced it up and put a tack weld on it. A 15mm ratcheting wrench works well here. [URL=http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105740_628_zps95cc9f9f.jpg.html][IMG]http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105740_628_zps95cc9f9f.jpg[/IMG][/URL] Just behind the disconnects there is a crossmember, here is a shot from the rear. There is a length of straight pipe before we get to the actual muffler. You can see the stock clamp disconnect on the very left. [URL=http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105722_999_zps88fd4107.jpg.html][IMG]http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105722_999_zps88fd4107.jpg[/IMG][/URL] Moving right along, there is a hanger just in front of the muffler. You'll need to remember this as it becomes a very good reference point and a hanger we want to keep. Here she is: [URL=http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105711_791_zps41be1665.jpg.html][IMG]http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105711_791_zps41be1665.jpg[/IMG][/URL] Ok, here is the bathtub sized muffler. No wonder this 6.0 is so quiet. Notice the hanger behind the muffler, we'll be using that in a bit also. [URL=http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105655_907_zps1d177b0b.jpg.html][IMG]http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105655_907_zps1d177b0b.jpg[/IMG][/URL] A shot of the back of the muffler, another shot of that rear hanger, and your first glimpse of the stock merge. We will not be working past this point. This is the rear of the system for our discussion. What's left is an over the axle pipe, then tailpipe and depending on model maybe you got a nice pretty stainless tip (Yukon Denali's did). [URL=http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105626_233_zps0f0704f1.jpg.html][IMG]http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105626_233_zps0f0704f1.jpg[/IMG][/URL] ----------------------------------- [/QUOTE]
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DIY Exhaust Thread-Dynomax Bullet
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