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Different Differentials

There really is a difference in differentials. On the right is a Ford four-pinion Traction-Lok unit. On the left is a Yukon Trac-Loc with billet construction for 31-spline axles (YDGF-31-SM) from Randy's Ring & Pinion.
Upgrade A '71-'73 Rearend And Suspension

 There really is a difference in differentials. On the right is a Ford four-pinion Traction-Lok unit. On the left is a Yukon Trac-Loc with billet construction for 31-spline axles (YDGF-31-SM) from Randy's Ring & Pinion.  View Related Article

Car Research Guide