#E3TA 4002-AA-incl. 1 swage bolt-2 1/8" long , (Crew Cab)
#E3TA 4002-AA-incl. 1 swage bolt-2 1/8" long , 8500 G.V.W. and over w/aux. springs "Before 11/85"
#E3TA 4002-AA-incl. 1 swage bolt-2 1/8" long , 8500 G.V.W. and over w/aux. springs "From 11/85"