These were used 1965-1970.
NASCAR FORD 9" DAYTONA PINION SUPPORT LARGE BALL BEARING TYPE + BILLET YOKE #543
NASCAR FORD 9" DAYTONA PINION SUPPORT LARGE BALL BEARING TYPE + BILLET YOKE #548
NASCAR FORD 9" DAYTONA PINION SUPPORT W/ LARGE BALL BEARING RF-C5AW-4668-C #535
NASCAR FORD 9" DAYTONA PINION SUPPORT W/ LARGE BALL BEARING RF-C5AW-4668-C #532
NASCAR FORD 9" DAYTONA PINION SUPPORT W/ LARGE BALL BEARING RF-C5AW-4668-C #538
NASCAR FORD 9" DAYTONA PINION SUPPORT W/ LARGE BALL BEARING RF-C5AW-4668-C #537