In {TAIL ~ certain alternative embodiments}, {HEAD ~ an extension link} 30 may comprise an adjustable length extension link 30 b having an adjustable length extension link body 37, a male end stud 31, a female end opening 32, and a spring keeper assembly 33 
In
In { TAIL ~ certain alternative embodiments } , { HEAD ~ an extension link } 30 may comprise an adjustable length extension link 30 b having an adjustable length extension link body 37 , a male end stud 31 , a female end opening 32 , and a spring keeper assembly 33
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH