I bought 2 ram seal kits for my LA402 loader on a B2710. Everything was pretty easy until I tried to install the center seal on the piston between the 2 snap rings. I stretched it with a transmission funnel and it worked fine but now the seal isn't shrinking back as I thought it would. Are those rings available by themselves or will I need to buy a new complete seal kit? And when I get new ones how in the heck do I install them without stretching them out? It would have been easier if Kubota made the piston in 2 pieces.