{HEAD ~ Each tooth} of the ring gear has {TAIL ~ a height} and a length, the height extending substantially parallel to the axis of the fastener and the length extending substantially radially from that axis 
{ HEAD ~ Each tooth } of the ring gear has { TAIL ~ a height } and a length , the height extending substantially parallel to the axis of the fastener and the length extending substantially radially from that axis
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH