Since you have 8000-lb axles, we know that they will use slipper springs and I can narrow your options down to 2 different sized replacement springs for your Sanibel 3500 5th Wheel. In order to choose the right one you'll need to determine the length of the spring. You can measure the length of the spring from the center of the eye on one side to the end of the spring.
If you have 29-1/2" long springs you will need # e46SR . If you have 26-5/8" long springs you will use # e37SR. Keep in... view full answer...
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