2" diameter hard chromed alignment bar, 39-1/2" long, with P/N 303 alignment sleeve that works for both ends,  Large Ford ends for 3.150" (80mm) O.D. and Small Ford. Mustang type ends,  2.835" O.D. (72mm bearings) with a choice of center alignment rings (1 pr).

Comes in wood shipping/storage crate. 

Instructions: Click Here

Replacement center alignment rings (sold as pairs)

3.062" PN 307: Click Here 

3.250" PN 306: Click Here

3.812" PN 305: Click Here