CT1700 - A new speedo housing leak stop kit for GM TH375, TH400, TH475 & 3L80E Transmissions, 1964 & up. Includes outer oring, inside rubber gear seal and spring retainer clip to stop leaking at your speedometer housing. This kit fits speedo housings designed for 34-39 and 40-45 tooth speedo gears. It will stop the leak where the speedo cable connects to the transmission.
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6 Reviews Hide Reviews Show Reviews
This product did it's job!
Part looks just as picture shows. Haven't installed, not sure if part fits. lol
Works as-advertised, fixed the only leak from my TH400.
Quality seals conveniently packaged! No issues or worries with fitment or not having the right part. Now my 1971 Big Block Cheyenne Super doesn't leak after driving! Thanks again!
Work great it stop the leak !!!!! GREAT PRODUCT.
Fits perfectly. I would recommend a new speedo gear while installing this seal set. If the gear shaft has any wear or grooving it may still leak.