I recently acquired a 1967 550 (gas) and am replacing the welded-up old muffler.  The replacement I received was a Stanley OL5 muffler.  When I install it onto the exhaust elbow and put on the exhaust pipe, the pipe is angling forward toward the front of the tractor and inward toward the center of the tractor instead of being straight up and down.  I would have to slide the muffler forward almost off the flange on the elbow approx. 1&quot; for the exhaust pipe to be straight up and down.  This Stanley muffler has an overall length measurement of 15&quot; but I have no idea as to what the original was.  Has anyone had a similar experience or know of a supplier with a different manfactured muffler and exhaust pipe?  I also may be in need of the left-hand Saginaw power steering bracket that bolts to the stabilizer arm.  Kent Gordon does not have one.  Anyone else have or know of a parts tractor?