Introducing the new RC10B7 universal driveshaft set, 67mm! This product is great for those that have the -4mm hubs with the 81mm arms and want to try universal driveshafts in their vehicles. These driveshafts can also be used for times where the 69mm universal driveshafts are too long for your specific configuration. This item fits the following: RC10B7 RC10B7D RC10B7.1 RC10B7.1D RC10B84 RC10B84D