Sorry that I didn't take a photo of the interior of the outer support, but I copied the photo supplied by Baker. Enclosed in the outer support are sealed bearings which truly support the spools. They are attached to the spools with 6 screws to each spool and it is a very rigid design. In this photo I am puttting screws through the outer support into the spools for a "trial fit" of the dogbone and to set the standoffs length. For my '09, the kit from baker included everthing, basically speaking you will reuse NOTHING from the stock primary drive. Apparently my bike had a different nut for the engine compensator than Baker thought it had. The kit did not include that nut and I called Mark Baker and told him that fact. I ordered the nut from FASTENAL which is next door to my office and had it in 3 days. As far as difficulty putting on the belt, it was a fairly easy process with a rubber mallet and light taps going from top to bottom-front to back. I have the entire stock system sitting on the shelf which encludes the compensator, chain, clutch basket, and inner & outer primary. If I had not sent the transmission to Andrew(Bigdogtech1) to have the bearings replaced for peace of mind while I was going this far, I could easily knock this kit out in a day. Being a visual learner, I though some of you guys that are considering a belt drive might like to see the process visually. I will finish the process with pics as soon as Curtis at WILD STEED gets me a final drive belt. And as soon as the snow stops falling and the temps get above freezing, I will give you feedback on the changes to the bike.