NEW A604 (40TE/41TE/41AE/ 31TH) Transmission Planetary Gear Set. Late 1991-UP rear planet setup, has the 1.125" Spline Gear Kit Comes With: Front Planet Rear Sun Gear 2-4 Hub Rear Ring Gear Overdrive Hub Rear Planet If you need a Tech manual, rebuild kit or any additional parts for your A604 rebuild please see our store or ask us we will be glad to accomodate all of your part needs.