1971 911T Rubber Center Clutch

Vehicle Information: Model: 911T; Year: 1971; Body Type: Targa; Engine (type, size, modifications): 2.2; Total Mileage: Unknown;

Hello,I recently purchased a NOS Sachs clutch kit for my 1971 911T Targa. I noticed the disc has a rubber center and was wondering if there are any problems associated with using this type of disc. Since replacements are quite pricey, I am hoping it is usable but I may need to be on the lookout for installation or longevity issues.Thanks,Ron