Product Description
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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For questions or to place an order by phone, please call our solutions desk at (888) 324-1617 8AM-6PM PST (West Coast USA).
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Product Reviews
14 Reviews Hide Reviews Show Reviews
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Works great
Transmission not leaking around speedometer any more
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Speedometer seals
Seals worked great,no leaks.Even Better was the help I received over the phone on the installation.Truly great service.Rare,
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Stopped the leak
Solved the leak around my speedometer cable housing
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Speedo stop leak kit for TH400
Rec'd the kit as described and installed fairly easy. I had a couple removal problems with my particular vehicle and contacted them via email.....Blake responded quickly with helpful information. The price was reasonable, parts were excellent and priced well and customer service was GREAT! Highly recommend!!
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Speedo Seal kit
Great product
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Transmission leak seal
Fast shipping and just what I needed transmission leak free
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Driven speedometer gear seal
Design is different from previous, seems like a better fit. Persistent drip is now gone!
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speedo seal kit
quick service & quailty product
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SPEEDO LEAK STOP SEAL KIT TH400 TH375 TH475 TRANSMISSION SPEEDOMETER
This product did it's job!
