#F2TA 9057-CA -rear-attaching hole dia. 25/64"-use w/midship tank , 133" WB 
#F2TA 9057-CA -rear-attaching hole dia. 25/64"-use w/midship tank , 137",161" & 168" WB 
(Crew Cab) , rear-attaching hole dia. 25/64"-use with midship tank 
(Reg. & Super Cab) 133" & 155" WB , rear-attaching hole dia. 25/64"-use with midship tank 
(Reg. Cab)(81) 133",137" & 161" WB , rear-attaching hole dia. 25/64"-use with midship tank