When I removed the passenger side exhaust pipe out of my 36, I jacked the front end up
and put jack stands under the front of the frame. With the weight of the front axle and wheels, the spring sort of relaxed and provided an opening between the top of the spring and the bottom of the frame crossmember. At that point I was able to fish the pipe through the opening. Sorry I had to revise this post, but I had changed the exhaust quite some time ago. Good luck Bob, and I hope it works for you.