Here is the procedure for installing a 9/32 brass tube with teflon liner for a .187 flex cable. First I purchased a new battery tray. Then I found a brass tube with teflon liner from Rocket City Racing that was perfect for this application. Their tube has a step down to .250 on one end so it will fit the stock grommet on the Spartan. I cut the tube the same length as the stock tube leaving the teflon liner stick out a little at the motor end. I then took the battery tray and bolted the the plastic u clamp together. Starting with a 1/4 inch drill bit I drilled out the clamp. I kept the bit straight by centering it in the motor hole. This first bit will remove a small amount of material and keeps the hole alignment perfect. Next use a 17/64 bit to remove the next small amount of material keeping the bit aligned to the motor hole. The final bit is the 9/32 which will remove the final amount of material. The clamp is now the correct size to grip the brass tube. On the other end of the tray you will need to open up the plastic guide. Some slight grinding with a dremmel or a rat tail file and the tube will seat all the way down in the u shaped guide. Bolt the brass tube in and test fit in the boat. Mine fit perfect. After installing put the .187 flex cable in and make sure the rear of the strut is aligned with the brass tube. Your flex cable should be centered in the brass tube and not rubbing on the tube. Whenever you adjust the strut height make sure the flex cable is centered. This was a fairly easy mod and now you can run a .187 flex cable with the teflon liner.