This is a brand new reverse idler gear. This is for the T90 three speed transmission. This is the correct and stock transmission for the CJ2A, CJ3A, CJ3B, M38, M38A1, and M170 jeeps. The Willys wagon and truck also use a T90. This is a high quality reproduction and we have actually used these in our builds. We have had very good luck with them. This is not a China junk part.