[Jonboy]

Like was previously stated, use a pair of C clamps to hold the spring, and replace the center bolt. You can get them at Napa and such. I would either match your existng one, or measure the size of the hole. The bolt is quite a bit longer than you will need, you just cut off the excess after it is tightened down. You should only have to move the rearend enough to get the bolt in, so there is no need to disconnect the bakes and all.