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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26 Reviews Hide Reviews Show Reviews
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Repair items for TH400 transmission
I received great advice and support over the phone prior to placing my order and when the items arrived on time they arrived well packaged and fit as needed.
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Speedo leak no more
Ordered this kit along with a new gear to seal up a leak on TH400. This kit solved the issue with its high quality seals. Installation was a breeze. Great product and service from Classic Transmission Solutions.
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Trans speed o seals
Have not installed, but look good
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Perfect
U guys r great
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th400 speedo
no more leaks....seals I thought I would never find.... thankyou classic transmission...
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sel kit
Fit like it should
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Correct parts
The parts were exactly to the original specs and fit perfectly.
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speedo leak stop kit TH400
Exact replacement which is impressive for a transmission over 50 years old.
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Stopped the leak like it says
Fast shipping and the price was right
