P/N PARTS CODE PARTS NAME SUPPLY 20 L1701378A1 倒档同步环 √ 21 L1701375A1 倒档同步锥总成 √ 19 L1701471A1 同步套5档 1.20 Input shaft P/N PARTS CODE PARTS NAME PARTS NAME QTY DESCRIPTION SUPPLY 19 L1701471A1 同步套5档 Fifth gear synchronize sleeve 1 20 L1701378A1 倒档同步环 Reverse gear synchronize rim 1 √ 21 L1701375A1 倒档同步锥总成 Reverse gear synchronize assy. 1 √