This item is used on multiple models.
Sometimes there is too much play on the main gear handle shaft which can result in the gears grinding. Some reels don't need a shim, others may need 1 to 3, it varies by each individual reel.
The shim for this main gear is:
8A-7000BTL on the BTL7000 & BTL8000 reels
8A-7000FRC on the FRC7000 & FRC8000 reels.
8A-7000SG on the SG7000 & SG8000 reels.
SHIMS INTERCHANGABLE. DIFFERENT THICKNESSES:
Thinnest to thickest:
8A-7000CQ Aluminum MM .08 T x 12.64 OD x 10 ID
8A-7000SG Aluminum MM .08 T x 13.96 OD x 10.10 ID
8A-7000FRC Brass MM .18 T x 13.96 OD x 10.10 ID
8A-7000PUR Brass MM .18 T x 13.92 OD x 10.10 ID
8A-7000BTL Brass MM .47 T x 13.96 OD x 10.10 ID