Turbo Flexible Th 350 400 Transmission Dipstick Stainless Braided Firewall Th350 Flexible Transmission Dipstick with Aluminum Head and Stainless Steel Braided Housing which Mounts to the Firewall For All GM TH 350 and TH 400 Transmissions. Thick billet aluminum handle with o-ring seals on both ends This Transmission dipstick features Billet Handle, Stainless Steel Braided Hose and O-Ring Seals to help stop leaks. Includes a stainless steel braided tube Fits "push-in" style transmissions.