The pinion has been lightened and it is standard 28 spline on the pinion. Alaska and Hawaii usually cost about double. International is even more yet.
5:29 MOTIVE 9" FORD RING & PINION STD WT BLK NASCAR DRAG RACE STREET 081516-9
Motive 9" Ford 5.29 Lightened Ring & Pinion Backcut NASCAR ARCA U529
Motive 9" FORD 4.86 Polished & Lightened Ring & Pinion NASCAR IMCA UMP U2
Motive 9" Ford 5.67 Polished Ring & Pinion NASCAR U-13
Motive 9" Ford 5.14 REM Polished & CNC Lightened Ring & Pinion NASCAR U-10
Motive 9" Ford 6.20 Ring & Pinion NASCAR U14
