N1 shift pattern (neutral-1-2-3-4-5) was designed to prevent false neutrals during aggressive 1-2 upshifts by positioning neutral under 1st. For 5-Speed transmissions. Pillow blocks are machined from 6061-T6 for a significant increase in strength over stock. The included drum will provide smoother, more precise, shifting after install. Made in the U.S.A..