CT8147 - A new complete mechanical speedo set up for TH350 and 700R4 transmissions. We can customize this for you. Please contact us prior to purchase if you would like us to substitute a different driven or drive gear or if you need help calculating the proper gear set. The setup shown is a popular combination for the 700R4, or for a TH350 with 2 inch hole in tail housing. Items included as Shown: Aluminum Speedo Housing with Seals for 40-45 Tooth Gears, Extra Set of Seals to use later, 15 Tooth Speedo Drive Gear, 43 Tooth Speedo Driven Gear, Drive Gear Retainer Clip, Speedo Housing Lockdown Bracket, Bolts - SAE & Metric, & Extension Housing Oring