The first thing that you need to do is to mount the bracket and threaded rod on your transducer. There are several options to do this, but for my application on the Elite 5 transducer, the best option is to leave the cap off the top of the transducer and line up the slots on the provided bracket to the grooves on the transducer.
Once the bracket is connected to the transducer, you can slide the threaded plastic rod, which is now connected to the transducer, from the bottom of the kayak up to the top. Hold onto the rod so that the transducer doesn’t fall, slide the mounting cap over the rod and begin threading the provided wing nut onto the rod. The rod is extremely long at this point and it will take a while to thread the nut down to the top bracket.
After snugging down the wing nut and positioning everything correctly, you can cut the rod down. This completes the majority of the install. All that is left is to place the Lowrance branded cap over the top bracket and run your wiring to your liking.
Please see my YouTube video for a step-by-step install of this kit on an Ocean Kayak Prowler Big Game II with Lowrance Elite 5 HDI.