Alternatively, {TAIL ~ the ring gear} may face in {HEAD ~ the forward direcion} and the thrust surface may be directed rearwardly 
Alternatively , { TAIL ~ the ring gear } may face in { HEAD ~ the forward direcion } and the thrust surface may be directed rearwardly
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH