If you want a near 60" D44, then a Waggy 44 is the closest thing you will find. It is 61" wide, but it has a perch width of 31" which sucks for spring to tire clearance at full turns. I recommend the extra width and do it with 4" off of the long side of a GM 44, and 1.5" off of the short side. Then, you can use stock shafts from Jeep and Dodge, and it will be at 62.5".
Just our $.02