Several windows have broken Channel (26C marking) Balance assembly. The block and tackle pulley has broken away from the spring and the T-lock shoe and rivets in the channel have come apart leaving the spring totally disconnected. Do you have a replacement for the block and tackle pulley or must I buy the whole channel assembly? Does the 26" SERIES 795 CHANNEL BALANCE work for me? Closed Cam might work for T-lock replacement but I find no pulley part replacement. Do I need Open Cam or closed Cam T-lock? I don't know difference.
The channel is truly 26" long and 1/2" (or as you suggest, more truly 9/16") wide. the T-lock 15-195 dimensions match mine. My top screw clip is OK.
BTW, I ordered replacement tilt latches 26-243 and 26-244 from you and they work perfectly on my windows.
Do you have a video how to install the Channel Balance assembly in the window frame?